Indemnización por accidente de bicicleta

As it happens with accidents in motor vehicles and with pedestrians, bicycle accidents victims are entitled to compensation.

Provided that the victim of a bike accident is not responsible for it, it has the right to be compensated for the personal injury and property damage suffered because of the accident caused by a vehicle motor.

With respect to the injury, the compensation that can be claimed are varied. Thus, from small fractures and injuries to death, there is a wide range of personal injury for which compensation of varying amounts can claim. Injury very mild, for example some courts, they could claim around 1,200 euros, by varying this amount depending on the recovery time of the injury, the age of the victim, etc. On the other hand, in the case of more serious lesions, which leave permanent and disabling, sequels may claim compensation of more than 300,000 euros, varying depending on various factors of correction and attendant circumstances.

In addition to the previous compensation, the victim is entitled to charge for each day that an amount of 71,63 euros is hospitalized. Also, it shall be entitled to charge 58,24 EUR for each day that can not carry out his habitual activity concept of preventive low. And for every day that can play your usual activity, but has not fully cured, will be entitled to collect 31,34 euros, down not preventive.

On the other hand, it is entitled to collect a compensation covering the cost of bicycle repair. Also, if other material goods were damaged because of the accident (mobile phone, watch, glasses, etc.), you can also claim compensation for them. 

Aid and bicycle accidents

Sequelae of injuries in a bicycle accident are very spacious. In any case, the victims who are disabled for life to work, to carry out the most basic activities of life or that they die, they are more common than we would like to.

Either way, victims of bike accidents can have right to certain aid, if the consequences of his injuries are very serious. Thus, people who become great invalid, because of the accident may charge a non-contributory pension and certain AIDS (for assistance, pharmaceutical expenses, etc.).

Also, in the event of death of the victim, not only relatives may recover damages to compensate for their loss, but they also have the right to enter in the protection of the Social security system.

Personal injury attorney Boca Raton is a popular and reliable law office for those who get accident, they will take on the responsibility of working on your case and are able to guiding you through the process of obtaining compensation for your personal injuries and damages.


A woman was injured then it will impact against a vehicle as it traveled, with two children, on a bicycle in the opposite direction, who lost part of his teeth strong impact.

The accident occurred yesterday at noon when Jaquelín Santis Cruz from 21 years of age, traveling on a bicycle along with two best of age, on a track in the opposite direction.

3 MUJER SIN DIENTES (1)In spite of this, when you reach the crossroads with a busy Avenue, it did not respect the signs and ended up impacting is against a pickup truck of luxury, where she and the best two fell to the pavement.

Santis Cruz as to who was driving the bike, was severely injured in the face, by which had paramedics of the Red Cross to meet it, who determined that it should be moved to the Integral Hospital.

According to the paramedics, his State of health was stable, however lost part of his teeth and needed to receive more comprehensive medical care in the hospital emergency department.

Meanwhile, Municipal roads officers arrived on the scene to address the accident, given that the vehicle, a pick-up truck Honda color cherry, with plates of DRX3917 circulation in the State of Chiapas, suffered damage to its bodywork.

Thus also bicycle where travelling three people suffered severe damage, so he had to take turns to an agent of the public prosecutor’s Office to be responsible for determining responsibility.

If you are in the same case of this woman, Visit Website to have the best advice and treatment from experienced dentists so that  you can achieve and maintain excellent oral health, as well as reaching your cosmetic goals.


Diet for cyclists

The high demand for cycling requires a diet balanced and controlled. Follow these tips to afford this activity taking full advantage.

The power of athletes is essential for good performance. It cycling is a very demanding sport, the cyclist must face rhythms sustained pedal for a long period of time, be able to raise and lower slopes and be able to perform sudden accelerations or sprints on each stage. The success of cyclists depends on its ability to endure all these demands. For this reason the diet of the cyclist made from best indonesian food singapore should consist of a balanced diet and control the energy expenditure, essential to maintain an optimal cycling activity.

The body of the rider, to maintain constant pedaling, using aerobic energy metabolism. The body is able to get energy to do the exercise in the presence of oxygen. Hence, the energy consumption of a cyclist is very high. It is very easy that it is incurred lower energy costs to calorie intakes, since physical exercise not always increases the appetite. Therefore, the rider should take appropriate nutrients paying attention to the amount of carbohydrates.

Daily feeding influences, significantly, the performance of the rider. A proper diet, in terms of quantity and quality, before, during and after the training is required for optimum performance. Also, should take into account, hydration, to avoid excessive loss of fluid and minerals.

Before the effort, the minimum period between the last meal and the practice of cycling It should be 3 hours, to avoid digestive problems and lack of energy. For this reason, you must take a not-very-heavy breakfast rich in carbohydrates, such as: fruits or dairy zuma, cereals, honey, water, ham, cheese, coffee last egg or you.

During the practice of cycling, They will feature opportunities for eating and drinking. During the competitions, meals, supplementation and hydration must plan during the race. The body will need more energy, so you need water and sugar for this reason, it is advised to take an energy drink every 15-20 minutes. Sports supplements are a way to easy to provide energy to the body, which most commonly used are, in addition to energy drinks, sports gels, bars them, concentrates or nutritional shakes, supplements of vitamins and minerals and electrolyte supplements.

Concentrates are more efficient that you energy bars them and is recommended consumption every hour, the difficulty or 30 minutes prior to arrival.

Once completed the effort, it can eat a milk or energy, a bar accompanied by an energy drink or sparkling water.

During the day, powers with some snack can be recovered as fruit juice, yogurt, bread, cereal or crackers dietary bars. At night, recommended the consumption of starches (rice, pasta or semolina), to meet the needs of carbohydrates, vegetables cooked or in salad, protein (120-150 grams of lean meat, fish or poultry, or croquettes) and a dairy.

The advice from a sports nutritionist can help the athlete to take good nutritional planning, that takes you to minimize risks and improve performance.

Pacific bicycle for disability

 The HandBike is one of the sports most practiced by people with disabilities. It basically consists of cycling with a specially adapted bicycle to be driven with the hands. Pedals are located at the height of the arms, and the user is comfortably seated in a seat that gives enough stability that they have two rear wheels.
The advantages of this sport are numerous. On the one hand it’s a very full year of all the upper part of the body and on the other hand is a sport that allows you to enjoy nature, be practiced in the company of friends with or without disabilities, and even many people arrive to compete. And it is that, don’t like who ride a bike?

In this story we want to tell you of a brand that just arrived in Spain, Pacific Cycles, and which is specialized in the manufacture of special bikes. And in particular we want to fix on a product that has drawn us much attention and is its Handy handbike. One of the main problems of the handbike are their prices, and it is that easily can cost us € 3000 a product of this type. However, there are a lot of people that want a bike to just do a little sport or take a walk calmly, without pretensions of competing. And it is here where fits perfectly the Handy, since it is probably one of the cheapest handbike in the market with a retail price recommended €1290.

The cell phone is ideal as a first bike model, to be introduced in the sport and for people who want a handbike to leisure time.
Among the technical features we can highlight its change NEXUS in 7 marches, which has the peculiarity that it’s an internal change in the bushing. Among the advantages of this change is that you can change in standing and 7 ° to 1 ° if desired, since it should not skip the chain.There is less chance of that coming off the chain, since there is a single sprocket and dish, the chain does not move. It is a development of the 244%, it is equivalent to a change of 2 dishes and 5 sprockets. In addition this change requires not just maintenance

With regard to brakes, say that it has two brakes for safety: one handle (typical v-brake) and one drum that can be operated by pedaling backward.

Of course, this bike is fully adjustable and is adapata to any size. You can:
-lengthen and shorten the chassis
-up and down the manual pedals
-Zoom in and out the seat
-adjust the inclination of the backrest
-Zoom in and out the reeposapies


These details make make it suitable also for children, since although they grow you can
grow bike, within certain parameters.

The bike weighs 17kg. and its chassis is made of aluminium 7005 T6

We come to another important point, which is its portability. Without tools, systems “Quick Release” can remove the rear wheels, seat and backrest. So it may be in medium-sized cars down the seats and is more or less flat. In addition, with tools you can split in half.

Accessories included are: bottle water, pennant holder, belt and safety packages.


And finally also highlight that there is available a version of high seat. Of course we are before a bike totally recommended to put us in this world without any complication, and at a reasonable price. If you are lack of budget, we can help you with benefits canada disability

In addition to the Handy, Pacific has two other special bikes models also will be marketed in Spain, the Micah and 2-Rider
Micah is a tricycle for children and adolescents with cerebral palsy.Facilitates a new way of moving, a mode of healthy and fun to gain independence, confidence and mobility.
2-Rider is a vehicle designed for two users pedal together. It is intended for mentally disabled that must be accompanied by a monitor.
Handy and Micah models are available starting in September, with a deadline of a week. Model 2-Rider will be available in 2015

Introducing the bike works

Bike Mechanic Wanted Ad

Cycling is fun and is a great way to travel. But for some people bicycle is more than a hobby or a form of transport-it is a job. Since the bicycle mechanic of the neighborhood or an urban bike glider, to the people who design their bicycle frames, there are many works related to bikes… but they are not so easy to find. Today we’re changing that.

To help you in your search for bicycle-related, are thrilled to announce a new feature of Ride the City: bike works ( jobs hiring near me). Bike works is a free service that lets you find (or list) a job that has something to do with bikes.Our goal is to provide you with a listing of works that anyone can use to find or list a career in the bike industry.

You can be thought, why create another listing of works service if companies like Monster and Craigslist have been doing for years? Our short answer is that none of these companies focuses on the bike. In those places, if you search the word “bicycle” as a search term to look for a job, the result can be a position at Harley Davidson. With bike works, we moderate each listing to make sure that the content is relevant.

Features include:

  1. You can search jobs by industry, country, State, or search term
  2. You can list positions or part-time or full-time internships
  3. Optional start/end dates allow you to control when the position is listed or when it expires (otherwise, the position expires in three months)
  4. You can enter the URL of the listing of jobs original (if it exists) to direct users to your own web site
  5. Did we mention it’s free? 100% free

We hope that bike works, has found an easy and practical instrument. Good luck in your search!

«Friendly» divorce for the cyclist Lance Armstrong

Lance Armstrong y su esposa Kristin , el pasado mes de julio
American Lance Armstrong, quintuple Tour de France winner, and his wife Kristin, decided to end their marriage of five years through a friendly divorce procedure. According to the cyclist, the couple separated soon after returning to Austin, Texas, from his Spanish home in Giron.
“We have a joint legal representation prepared by Divorce in Arizona, AZ for a friendly separation,” said Armstrong. “The most amazing thing is that we are closer and more friends than ever. We want a good relationship but not marriage,”he insisted. “It is an unfortunate situation but we are trying to extract the best for the good of our children ‘, estimated Meanwhile Kristin.

Cyclists, entrepreneurs and accounting

A business idea does not necessarily become a company that in a couple of years have to expand internationally to proceed. Neither the national territory.

Our way of doing business is local; want to do a community through the trade of downtown. A parcel service in Valladolid. It is a niche in a city of medium or large size.The aim is to add value by offering sustainable transport and provide more flexible vehicles in the vicinity of the city.

This is the vision that has guided Paul César Thyme, co-founder of  Great Bookkeeping Services Provider  , sustainable transport company. His business idea was not new; Nor is it unusual for a business aspires to be only locally. Nor that the city is considered as a niche business. Typically, the entrepreneur who thinks globally and acts locally and then wants to go sell to Germany.

Business is simple: has 3 tricycles, has a local store type and up to 3 lines of business . On the one hand, express mail; secondly, the last mile transport for medium and large companies messaging, and mobile advertising platform. No need nothing more.

Xiclo: Sustainable Urban Cast tricycle

One can speak of three bases of this business:

  1. Reduce energy consumption. Your business does not need fossil fuels, does not produce CO2 emissions, two of the main causes of the greenhouse effect and global warming.
  2. Not produce noise pollution.
  3. Not conflict parking. I alno have areas with loading and unloading times, not hinder anyone and always use the bike lane.

The business started with own resources, some training in accounting course and through a loan from Fondesva earmarked for social projects. Vu Tran Mai and Paul César Thyme bicimensajería created this company in Valladolid after doing a market survey and visit a sustainable transport company in San Sebastián, called Txita. A clear testimony that you can also take in Spain.

Presentation of cycling training software CycloSorties


cycling training softwareCycloSorties is a powerful software designed for the management and analysis of your training in cycling.

This ergonomic software is designed for all different cycling practices to help you advance in your cycling:

  • Cyclists and runners will analyze in detail their training and data thereof, to always improve.
  • Cyclists can keep track of their routes out using the points of interest, and make travel arrangements for cycling.

Presentation of training software modules CycloSorties

The bike CycloSorties software consists of different modules for cycling. You will find below a brief presentation of the majority of these modules.

Cyclists outputs

Cycling trips

This is the most useful module CycloSorties training software that enables you to record as much information about the trips made. You can also save favorite routes in order to avoid having to re-enter the information about this course. Distance, route, altitude
Other seizable but optional information is overstaffed: heart rate, HR zones to time, recovery, type of work, altitude, min / max altitude, weather conditions (wind, temperature), ranking if it is a test (general category) …
Depending on the type of output or cycling selected only the relevant fields are acessibles.


chrono coast

This software module allows you to record performances on a climb coast or neck. You can see the evolution of your climb performance of coastline in time, including an estimate of the power output to climb.

Against the clock

against the bike shows

This CycloSorties module lets you record performance on a type of course against the clock. You can see the evolution of your performance and the average speed against the cycling watch.

Analysis center

Analysis Centre

This is the most interesting module in view of progress in his cycling. Indeed it can analyze all the information you entered on your cycling output data: evolution of the average speed, distance or height difference per period, average speed per distance, type of work during outings, summarized by period .. .
It contains over 50 different analyzes to allow further study of the information you have entered. Most of these analyzes in graphs, some form of summary table.
You can also use the comparison analysis to see up to four analyzes together and analyze all the online data entry.

Planning cycling events

Scheduling events

This module lets you schedule events, and to define their importance. CycloSorties offers an overview of weeks of training to be made between these cycling events. You are free to follow this proposal or not, depending on your fitness level.

Planning objectives

Planning objectives

This module allows planning goals that you try to take in order to progress. For example you may want to perform 1200km over 1 month, or make a minimum average speed of 28km / h over 10 days …

Cycling Awards

Cycling Awards

This module allows to clearly see its cycling charts. But it also allows to see the delay on the first time and percentage if you have filled his time in the entry test. It also allows you to view a summary of podiums achieved  dameshorloges online.


Cycling dashboard

This module can display different summary information on your screen just after the launch of the software. Each cyclist is different, so you can customize it by choosing what to display and order of appearance.

Medical Information

Medical Information

This module allows to note its medical monitoring, whether the injury or illness, to consult and to know what form of state can be expected from his body. You may also note the dates vaccines for future reference.

Travel Arrangement

Bike Travel Preparation

This module allows to prepare a travel project, and enter all the information about this trip in the same window four areas: accommodation, cycle routes, places to visit, various. You can then export the document in Microsoft Word format.

Management expenses cyclists

Management velo budget

This module allows you to manage cyclists expenses. You can enter all your expenses, such as biking, new parts (pedals, forks …), new consumables (tires, rooms …) Cyclist (shirts, shorts …), costs or racing cyclosportives …

Road passes

List of European cols

This module allows to see information about more than 10,000 European collars and their variants: length, altitude, altitude of departure and arrival, average slope, and even profile!


Tools cyclists

This module contains various small cycling helpful tools calculate gear ratios and corresponding speeds, group data of heart rate, estimating a time of uphill climb, or calculating an intermediate average.



This module allows you to manage your equipment. CycloSorties can automatically affect equipment output entry. You can know the number of the output relays.

How to change the wheel bearing on a bike

Bearings Bicycle wheels are inside the wheel hub. Although they are easily accessible on the front wheels, you may need to remove the sprockets to access the rear wheel hub. If you ever changed a shaft bearing cup and cone style, you’ll note that there are many of the same steps followed in this process.


  1. Remove the wheel of the bicycle. Release the brake and opens the quick release clamp or use the 17 mm wrench to unscrew the nuts.

  2. If necessary, remove the freewheel or cassette.Usually, you can change the wheel bearings rear axle without removing the freewheel, but may be more difficult. If a cassette, you must remove it.View items Sheldon Brown on freewheels and cassettes for more information.

  3. Unscrew the nut and remove the washers, spacers and dust cover caps (if any) of one side of the axis (this is the thick tube and threaded through the wheel hub) using the key 15 or 17 mm.If you’re working on a rear wheel, remove the nut that is the side opposite the freewheel or cassette hub.

  4. Use the correct cone wrench to unscrew the cone axis size. Pulling the shaft out of the opposite side of the wheel. Hold the wheel upright when you withdraw the shaft, as some ball bearings can be dropped.

  5. Remove the ball bearings or vong bi on both sides of the shaft, place them in a cloth and count how many left each side. Clean them with a cloth and examine them in search of bumps or scratches. Discard all damaged bearings. Generally, the front wheels bearing use ten 3/16 inch (0.47 cm) on each side of the rear wheel hub and utilize nine 1/4 inch (0.63 cm) on each side.

  6. Clean glasses containing ball bearings (vong bi). Thoroughly coated inside with new grease. Use enough for ball bearing stays in place when installing the glass.

  7. Place the wheel on the ground with the hub side where you got the shaft upward. Place the correct number of bearings in the glass. Turn gently and carefully the wheel. If the bearings fall, adds more fat to keep them in place.

  8. Insert ball bearings in the other cup. Slide the rear axle in the hub in the same position as you get it.

  9. Cone screwed again on the shaft. When contact bearings, you must stop. And push the shaft rotates back and forth. If it moves, screw the cone further. When the bucket makes a slight squeak when turning the shaft, unscrew the cone a quarter turn and repeat until the noise stops and then unscrewed one quarter turn. This makes inevitably tighten the cone over again when you place spacers, washers and nuts, but without causing additional noise.

  10. Replace the spacer, washer and nut. Place the rear wheel of the bicycle.


Guide to buying an electric bike

We want to share some of the knowledge we have learned from our experience over the years. We hope you find it useful and I know they can always email us with your questions to us.

It is relatively easy to compare traditional bikes together, for reading the specifications or just looking bikes you can see what the differences are and where the money goes. With electric bikes or xe đạp điện in Vietnamese , the differences are not so obvious because it has electronic parts. Is something like buying a car or a motorcycle.

It takes years to truly understand all the technologies used in e-bikes and the interaction between them, and how they affect the experience of riding an electric bicycle.

The performance of an electric bike is not only down to whether or not employ the latest technology in batteries. It is a combination of battery chemistry, electronic controller, the core composition engine, wiring and connectors used, the degree of quality of all materials, system efficiency and attention to detail factory.

One may be surprised by how power is integrated with your driving style when energy enters the engine, when cut, or soft or aggressively happens in both cases. Are the gears properly adapted to the power and to its intended use?

For example, if you have knee problems and ride an electric bike with cadence sensor and a high development (chain on the smallest sprocket) it can be very hard since the started pedaling with no fluid enough for the sensor pedaling send the signal to the controller to boot attendance.

In addition, changing gears, need to be already in motion … This does not necessarily mean that people with knee problems can not use an electric bike speed sensor , moreover, can be advantageous when lower gears are used as the engine will deliver its full power pedaling applying minimal pressure and, hence freeing the knee voltage. It is very important that the manufacturer has thought about the practical aspects of its design and programmed control unit accordingly.

There are so many electric bikes on the market that can be difficult to choose between different makes and models. Adding to the confusion many brands of electric bikes have models that look identical and very similar specifications, but very different in price and performance. As if that were not enough, we often encounter with features that, on paper, are not very realistic.

Another difficulty is that the electrical components for bicycles are not standardized, as components for traditional bicycles. This means that if you can not buy a piece through your dealer , probably can not easily get anywhere else.

Europe is home to some of the largest companies in the world and more powerful bikes. Very few, like Sparta, were pioneers of electric bikes, most are just entering the market power and in our tests, some known bicycle brands have not gone very benefit.

It can be said that without understanding very well electric bikes, managers of big brands have managed to play a clever hand. They have chosen to say electrical systems, standard, leaving the main argument decision to buy a bike, bicycle components, some what better understood.

This is convenient for businessmen, but restricts consumer choice. At fairs Bicycle 2011/2012 we have seen almost all brands of traditional bicycles, either with a Panasonic , Bosch or systems BionX.  So the only thing left to select a new ebike is the style and components bicycle.

Can three drive systems meet the needs of all consumers? From our experience and our customers know we do not.

Most publications are influenced by advertisers and authors of many of them have never seen the bike on which to write. Feel safe defending big brands. This often leads to a lackluster ebike is announced as the best. There really is no “best e-bike “because driving styles and performance vary so dramatically that each client needs to try several products to find what best fits your needs.

We hope this guide will serve them for this purpose.

Legal : First, we must be clear what an electric bicycle pedaling asistitido for legal purposes and distinguish electric mopeds. The former do not need insurance or driving license and are, for legal purposes, exactly like a traditional bike. To be considered as such a pedal assist electric bike must meet certain characteristics.

  • The engine must not exceed 250W rated power.
  • The maximum speed that can reach should not exceed 25 km / h .
  • The engine can only be activated while pedaling and must stop automatically when the cyclist stops pedaling or engage the parking brake.
  • The bicycle as a whole must not weigh more than 40 kg .
These are the main requirements for a pedal assist electric bike complies with  Directive 2002/24 / EC .

Comfort : It’s very important when making such a large investment. If you are not comfortable on a bike, it will not use or at least not leverage its full potential. When a person feels comfortable in yourebike and therefore safe, these products can totally change your mindset about local transportation.

Security : Closely related to the feeling when riding and how power is integrated with the driving style and terrain. Some bicycles pedelec need one or two turns of pedals before the pedaling assisting the engine, and therefore may be harder starting.

On the other hand, some electric bikes are very aggressive from the start and can be difficult to control in tight spaces.
Maintenance : The ability to properly maintain the product is paramount. Too many e-bikes that are designed to offer an attractive image and not to provide a long service life at low cost.

Most systems acclaimed ” crank drive “with the engine shaft bottom bracket work with all components in a single sealed unit. Such systems are quite nice and tidy, but …. if one component fails, we must replace the entire unit with a great cost. We must emphasize all aspects of a product to ensure that each customer makes the best purchasing decision for yourself, analyzing the advantages and potential disadvantages.

Another critical point for electric bikes are the brake levers. In traditional bicycle brake lever always spoil. They are the first thing that touches the ground when the bike, or wall or other bikes to park them fall. The same applies to electric bicycles, except that this often results in that the electronic switch is damaged brake lever and the consequent outage permanently. In most electric bikes we see these switches are not easy to replace, so it’s something worth considering when different bikes are compared.
Reliability : The reliability of an e-bike depends on the quality of each the components used in their manufacture. When purchasing a e-bike most of us have a budget in mind, and from there, our goal is to get as much inside. However, the old adage “you get what you pay for” is not always true here. We’ve seen a lot of very expensive electric bikes that have serious quality problems. In our experience, a less expensive electric bike can be very reliable if not regularly expose extreme situations (electrical and mechanical). For example, if you live in a mountainous place, you may have to spend a little more to find a bike that will pave the outstanding reliably for many years.

So how do you choose where to spend your money and make sure you get what you expected? In this regard, it is important to learn a little about the important features of an electric bike.

Weight:  The weight of an electric bike is essential for its operation, plus there are legal limitations thereon (see Rules and Regulations ). The heaviest parts of an electric bike is the battery box and the motor.

Table : The lightweight frames are almost always good, unless you intend to make “trips off-road “or descent because, usually, a light box sometimes sacrifices flexibility and endurance.

– Aluminum alloy 6061: good for use ” off-road “moderate and city.

– Aluminum alloy 7005: good for road bikes and urban use.

– Steel: good for heavy use. Super resistant. Much heavier than aluminum.

Battery: Every time they are coming to market lighter batteries that offer the same autonomy that heavier. This topic will detail later.

Motor : It is the component that provides the turning force to assist the pedaling.
Thanks to constant improvements engines are getting smaller, but like any tech product, are more expensive. The engines have better materials, lighter weight and size and shrinking, while still providing the same power.

Delve into these last two aspects in the next issue.

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There are mainly two types of motors used in electric bicycles . All have their pros and cons:

  1. Brush motors : These motors have very good press. Are larger, heavier and noisier than their counterparts brushless addition, although quite economical, maintenance free. However, if one takes into account that the motor can run to 20,000 km maintenance and, after maintenance, the engine will continue running like new, your prospect can begin to change. Therefore, we can say that the brush motors have proven to be a solid choice at a lower price.

  1. DC brushless motors or BLDC : also known as brushless . They are smaller, lighter and certainly quieter than brushed motors. The technical differences are not as important as the relative performance in different applications and truth are the best choice for e-bikes in recent years, although a good motor with brushes can be more robust in demanding circumstances and can be best climbers to the given power.

Brushless Motor 8FUN

Since the introduction of the hub motors without sensors, there has been a significant improvement in the reliability of these motors. Effect sensors Hall are no longer necessary because the position of the armature can be detected by EMF or by detecting the magnetic field, and this reduces the necessary electronics on board motor, improving reliability.

Brushless motors have a linear power response speed, which means that the maximum torque is available from the start in stop and reduces smoothly through acceleration.

Motor power

Something that is not often mentioned is the efficiency of a motor. What power we are talking about when we ask 200Watts or 250watts, is the power input or output?

When a current is applied to a motor, it rotates with a measurable force Nm. The more efficient an engine with more force (Nm) rotate to a given input power. Efficiency, therefore, is given by the difference between input power and output power.

In other words, the efficiency of an engine which indicates amount of energy received by the motor is converted into movement of our electric bike . Always be some power due to resistance in the copper coils, the resistance between the magnetic fields, and because the harmonics generated when the engine is running.

The efficiency is a factor that explains the differences in performance in some electric bikes with the same specifications.

Ideally engine medium-low power consumption (from 200 to 500Watts) is accompanied by a high peak power, for example 1.5Kw. Thus, they have the necessary power without creating high energy demands could damage the battery or wiring.

Peak power is the maximum power output of an engine can reach for a few seconds.

Position of engine

There are basically two engine positioning options

  1. HUB Engines

Delia's EG Electric Bike

The HUB those engines are coupled to the wheel hub. The vast majority of electric bikes use these engines.

These are the main advantages of an engine of this type:

  • The engine is placed in a space that was wasted in the design of conventional bicycles.

  • Installation is very easy as evidenced by the huge amount of conversion kits flooding the market.

  • They are fairly simple, thus reducing the total cost of the vehicle.

  • They are mostly sealed and maintenance free.

  • The motor is directly connected to the driving wheel, which improves efficiency.

  • The center of gravity is relatively low, maintaining a good balance.

  • Attractive image.

  • Easy access for repair or replacement, without any other component is affected.

  • Being easy to replace, allows we always open the door to upgrade your bike with the best and latest technologies.

  • If the HUB motor is placed in the front wheel, the bike will have two drive wheels as pedaling the back is turned.

However, we can also find some drawbacks:

  • To be sealed against water and dirt removing heat generated by the motor can be problematic. Fortunately, many drivers manage engine temperature.

  • Wheel weight is added.

  • There are hundreds of central engine manufacturers and they all look the same, but very few actually offer great performance.

  1. Motors located on the axis BB

Panasonic and Yamaha are betting heavily on this type of system, whose sales have soared in Europe but not both USA.

We can identify the main advantages of this system:

  • The motor may be smaller because the housing allows the heat is released more effectively.
  • The engine is usually in the bottom of the shaft bottom bracket lowering the center of gravity of the bicycle.
  • The engine can stay close to their optimum operating point using the gearshift of the bicycle.
  • Using the shifting of the bicycle, these motors can provide more effective assistance pending the HUB engines, to equal power.
  • By using low power, reliability is improved.

Also here we have disadvantages:

  • Units are always sealed and contain almost all of the components: the engine torque sensor and controller. This means that if a component fails, the whole system has to be replaced.

  • Each system is patented, so if spare parts are not available will be very expensive adapt the measure from one system to another.

  • The output power and therefore, the performance is limited by the strength of the chain and sprocket. Standard pinions and chains were designed to human transmission through pedaling, which means that the amount of mechanical energy that can be added is relatively small.

  • Because of this, maintenance of the drive chain will increase, including all gears and pinions.


Batteries are electrochemical components and have their own, say, “personality”. It is almost impossible to find two identical behavior batteries. Although two people the same model are purchasedelectric bike at the same time, they can have completely different experiences with their batteries.

We have studied the whole theory on batteries (that can keep one busy for a long, long time), but the most useful information has come from our customers. Often, the information provided by laboratory tests can not replace it emerges from the experience of end users with their batteries.

The industry of electric bicycle has been waiting to become an important enough to allow more efficient technologies batteries are offered at reasonable prices sector. This is already beginning to happen.

A battery is not only a solid piece, is a collection of “cells”. The cells are complete units electrolyte with an anode, a cathode and produce electricity from a chemical reaction.

Each type of cell has a nominal voltage. For example, NiMH (nickel metal hydride) is about 1.2 volts per cell, and thus need a lot of cells combined to obtain the voltage used in an electric motor. Thus, 30 cells would get approximately 36 volts, thus obtaining a useful voltage.

 How the measured capacity of a battery?

 Usually when someone asks about the capacity of a battery, is looking for basically two things: (1) the amount of energy stored in the battery cells (? How far I can go); and (2) what current cell rate (how much power and how fast?) are discharged

The amps are the most common to describe the amount of stored electricity in the cells form. The ability of a cell in ampere / hour (Ah) is also full battery capacity in Ah. A cell 7 Amp is 7 Ah to 1.2 volts. With the example above would need 30 of them to obtain the required voltage, but would still only 7 Ah useful energy to that voltage.

To put it another way, more Ah, we go further and faster. However, more Ah cost more money, and weigh more.

When we read Wh (watt / hour) on battery specifications, we are more or less to what we have been explaining about Ah, but in this case the voltage is also considered. For example, a battery of 360 Wh is only 10 Ah battery to 36 volts (36V 10Ah x = 360Wh).

Maximum current means essentially “what is the maximum download speed of a cell?”. Think of it as a bucket of water. The hub is the cell and water is electricity (the larger the cell, the greater the amount of water), where the water leaves through a hole in the hub. Thus, the larger the hole, the faster will the water.

In terms of battery, if the download (the hole) is not large enough, then the engine may not be able to get enough energy (water) to operate with maximum performance.

The measuring unit is described in terms of maximum amperage that can support cell per unit time. Another way to describe it in terms of “C” or what is the same, the rate at which the battery can be discharged for one hour = 1C. For example, if the battery discharge 10 amps for one hour means you will have a maximum current of 10Ah to 1C.

Problems in construction of batteries :

Most consumer batteries electronics utilize a handful of cells. For example, a battery of a mobile phone of 3.6 volts, may have three NiMH batteries at 1.2 V battery in a plastic box. The electric bikes , usually no more than 30 merged cells. Each cell is connected to another with a small metal connector. Each connector is a potential point of mechanical failure, and a small resistance.

Battery types

  1. Lead Acid (SLA)

Pros : average energy density, maintenance, proven in millions of electric, cheap bikes.

Cons : heavy batteries, very short life cycles, no fast load option and not easy storage.

  1. Nickel (NiMH and NiCd)

Pros : average energy density, relatively fast loading, average weight.

Cons : suffer from memory, slashing performance at low temperatures, difficult storage effect.

  1. Litio ion (Li-ion)

There are numerous types of Lithium. It is essential to know one needs to avoid mistakes when choosing a battery, otherwise you may not get the performance you expect. In addition, improper use of the battery may lead to a shorter life cycle, with the costs that entails.

Here’s where it gets really interesting theme, so you have some basic knowledge required to understand the role of chemistry in different Lithium:

Lithium batteries are formed by two parts: the anode and cathode. Energy is released when the ions (in this case, lithium ions, Li) move from the anode (positive) to the cathode (negative) through the electrolyte. Anode is usually graphite, the electrolyte is usually a lithium salt solution. Improvements in this field of chemistry occur primarily within the material it is made ​​the cathode. Some of them are: Lithium Manganese LiMn2O4, Lithium Nickel Cobalt Manganese LiNiMnCoO2 (NCM) , Lithium Manganese Cobalt LiMnCo , ferrous or Lithium Iron Phosphate LiFePO4 .

Pros: light weight, high energy density, durable, maintenance free, fast charge and can be stored. Also have over 500 recharging cycles until 2000 in the case of LiFePO4 life.

Cons: expensive, may be unstable, the cells suffer shit and downloads at different rates may jeopardize the orderly functioning of the battery.

  1. Lithium Polymer (Li-Po)

Pros: It is one of the available lighter batteries with a very high density of cargo, maintenance, fast loading, high stability demonstrated in tests extreme laboratory, speed low self-discharge, can be stored if precautions are taken, range operating temperature.

Cons: expensive, will suffer if stored incorrectly, you may suffer thermal runaway and represent a fire hazard if charged after a period of improper storage or if the BMS has failed catastrophically.

* For months, the emergence of Li-NCM developed by manufacturers like Samsung are pushing the market to other lithium chemistries for high charge density which reaches 200Wh / Kg, which means, comparing with LiFePO4, reduced to half the weight and volume of the battery to store the same load. Our electric bike or xe dap dien  Bolt trekin is equipped with this type of battery.


Are the brain’s electric bike – xe đạp điện, determine how much electricity flows from the battery to the motor by regulating its proper functioning. Internally usually a chip of about 10cm x 6cm protected by an aluminum housing.

The brushless DC (BLDC) require a driver to turn the engine and not worth a simply switch.

The controller determines the following:

  • When entering the engine to attend

  • Much Aid provides engine

  • Speed ​​(maximum)

  • The outage undervoltage / voltage or high temperature in the engine or battery (advanced and sensor)

  • Energy recovery function during braking (reverse battery)

  • Help to start at 6 km / h (maximum allowed by law to use the throttle and no pedaling)

For an electric bicycle is considered as such in EU, the engine can only help while pedaling. To ensure this, there are several technical solutions:

  1. The torque sensor / par :  is a sensor that detects the force exerted by the driver on the chain through the pedal stroke. The stronger the greater pedaling support received from the motor.Disadvantage: tends to a cadence (pedaling speed) slow heavy, and therefore unhealthy.

  1. Cadence : here the motion sensor detects the speed of rotation of the cranks. The faster spin, gives the engine more assistance. Disadvantage: The pedaling slowly have very little support and have to get used to go on a 80 RPM or increase the number of magnets available in the magnetic sensor disk to simulate increased rate.

Sound drivers simply have a rotating motion detection, ie, the motion sensor on the crank (bottom bracket to be exact) only detects rotating and then gives 100% attendance, or allows use d eun accelerator or a manual switch between manual 3-6 speeds, which is enabled only by pedaeleo him as saying.

Finally it is important to distinguish between motor controllers with and without Hall sensors: the first are gentler on departures from 0km / h especially when it comes 250W engines without gears; others in changes are more reliable and consume less power once launched.