Controllers for brushless motors: E-bikes require high initial torque and therefore models that use brushless motors typically have Hall sensor commutation for speed and angle measurement. An electronic controller provides assistance as a function of the sensor inputs, the vehicle speed and the required force. The controllers generally allow input by means of potentiometer or Hall Effect twist grip (or thumb-operated lever throttle), closed-loop speed control for precise speed regulation, protection logic for over-voltage, over-current and thermal protection. Bikes with a pedal assist function typically have a disc on the crank shaft featuring a ring of magnets coupled with a Hall sensor giving rise to a series of pulses, the frequency of which is proportional to pedaling speed. The controller uses pulse width modulation to regulate the power to the motor. Sometimes support is provided for regenerative braking but infrequent braking and the low mass of bicycles limits recovered energy. An implementation is described in an application note for a 200 W, 24 V Brushless DC (BLDC) motor.[43]
China has experienced an explosive growth of sales of non-assisted e-bikes including scooter type, with annual sales jumping from 56,000 units in 1998 to over 21 million in 2008,[72] and reaching an estimated fleet of 120 million e-bikes in early 2010.[2][73] This boom was triggered by Chinese local governments' efforts to restrict motorcycles in city centers to avoid traffic disruption and accidents. By late 2009 motorcycles are banned or restricted in over ninety major Chinese cities.[72] Users began replacing traditional bicycles and motorcycles and e-bike became an alternative to commuting by car.[2] Nevertheless, road safety concerns continue as around 2,500 e-bike related deaths were registered in 2007.[73] By late 2009 ten cities had also banned or imposed restrictions on e-bikes on the same grounds as motorcycles. Among these cities were Guangzhou, Shenzhen, Changsha, Foshan, Changzhou, and Dongguang.[72][73]

As electric bike options continue to expand, more brands are integrating the battery more seamlessly. That makes them look sleeker (and more like a real bike). Batteries are expensive, so make sure there's a good way lock the battery to your bike if you'll be keeping it outside. Overall weight is important. Some battery and motors can add 15 pounds or more to the bike. With assist, you won't feel that much when you're riding, but you will if you have to carry your bike up stairs or lift it onto a bike rack.
Glenn has over 15 years of experience building bicycle wheels and has worked for and with the local cycling community in the Philadelphia area for the past 20 years. Glenn is in charge of all wheel building activities at E-BikeKit and oversees quality control on wheels built in the Newportville, PA location. Since joining E-BikeKit in early 2010 Glenn has had a huge impact on the success of the company...
It means you can fit much more riding into one session. Or if you want to cover more distance (as often the best riding spots are quite far apart here in the UK) e mountain bikes are perfect for the job. All the usual MTB configurations are available – everything from wheel size to forks and more, and there’s the choice of hardtail or full suspension electric mountain bike too.
More traction, more control, more fun—this is the philosophy behind the Ruze women's mountain bike. It pairs our 6Fattie wheel system with a design that makes climbing fast and efficient, while keeping things full-throttle on the descent. It's also tailored for women, with Women's Trail Geometry, a Body Geometry Myth saddle, and components that are specifically sized for women throughout the line. It's the ultimate trail hardtail.
Nicolas Zart Nicolas was born and raised around classic cars of the 1920s, but it wasn't until he drove an AC Propulsion eBox and a Tesla Roadster that the light went on. Eager to spread the news of that full torque, he was invited to write for various CleanTech outlets in 2007. Since then, his passion led to cover renewable energy, test drives, podcasts, shoot pictures, and film for various international outlets both in print and online. Nicolas offers an in-depth look at the e-mobility world through interviews and the many contacts he has forged in those industries. He particularly enjoys communicating about the new e-mobility technology and what it means to us as a society. Today he focuses most of his writing effort on CleanTechnica, a global online outlet that covers the world of electric vehicles and renewable energy. His favorite tagline is: "There are more solutions than obstacles."

The need to develop a high-performance e mountain bike provoked the launch of the ATOM X project over three years ago. A team of experts was put together from the fields of MTB geometry, suspension and performance, advanced motor, battery and IT technologies. That is how the innovative and patented “X System” came about, which represented an integration that was both ergonomic and different. It was developed until it became the best eMTB with the best of both worlds: high performance and the most advanced electric technology. See the ATOM X e mountain bikes...
E-bikes use rechargeable batteries, electric motors and some form of control. Battery systems in use include sealed lead-acid (SLA), nickel-cadmium (NiCad), nickel-metal hydride (NiMH) or lithium-ion polymer (Li-ion). Batteries vary according to the voltage, total charge capacity (amp hours), weight, the number of charging cycles before performance degrades, and ability to handle over-voltage charging conditions. The energy costs of operating e-bikes are small, but there can be considerable battery replacement costs. The lifespan of a battery pack varies depending on the type of usage. Shallow discharge/recharge cycles will help extend the overall battery life.
Engineered to climb swiftly and efficiently, the Trailfox AMP Two is ready to take you where no ordinary mountain bike has taken you before. It’s all thanks to the likes of a Shimano E8000 drive unit, 650b+ wheels and tires for incredible traction, a Twin Hollow-core Tube Design, E-Specific Suspension Linkage for precise handling, and an E-Specific Advanced Pilot System offering an active yet efficient suspension system for the taking. Best of all, this is only the beginning of what the Trailfox has to offer.
I have cerebral palsy and have used a powerchair since I was three.... About a year and a half ago I applied for a grant from the Challenged Athlete Foundation for a handcycle. While I was waiting for letters to go out I worked out at the gym. I was talking to my trainer about handcycles. I explained that because all of the weight was behind the drive wheel in...
The two most common types of hub motors used in electric bicycles are brushed and brushless. Many configurations are available, varying in cost and complexity; direct-drive and geared motor units are both used. An electric power-assist system may be added to almost any pedal cycle using chain drive, belt drive, hub motors or friction drive. BLDC hub motors are a common modern design. The motor is built into the wheel hub itself, and the stator fixed solidly to the axle, and the magnets attached to and rotating with the wheel. The bicycle wheel hub is the motor. The power levels of motors used are influenced by available legal categories and are often, but not always limited to under 750 watts.

In Stock & Free Shipping now! COLLAPSIBLE FRAME: The electric bicycle adopts 100 percent lightweight aluminum alloy collapsible frame for quick folding and easy storage. You can have it with minimal storage space and easily store into any vehicle. BRAKE & PREMIUM QUALITY: Front and rear disc brakes fully protect your safety. The front fork is made of high-strength carbon steel and packed with premium comfort shock absorption, double layer aluminum alloy wheel. The bright LED headlamp and horn is equipped for night riding. REMOVABLE LITHIUM BATTERY: The removable 36V 8AH lithium Ion battery, equipped with smart lithium battery charger...
The AWOL is equal parts versatility and durability, all in one perfectly balanced package. Whether it's navigating through the urban jungle as your commuter rig or strapping on panniers to explore the back roads less traveled on a bikepacking adventure, the AWOL relishes either challenge. So go ahead, plan your next adventure or see where you daily commute will take you. With the AWOL, the only thing holding you back is your imagination.
Last year, the Trek Powerfly 9 LT was one of the only ebikes with geometry and handling that came close to a modern enduro bike. For 2018, Trek has built on that winning formula with new frame. It’s lowered the battery in the downtube, while adding a stiffer Fox 36 fork, more powerful SRAM RE brakes and a stronger Bontrager wheelset. All welcome improvements to a really capable bike. The price has also crept up to reflect the changes. The biggest transformation however, is that Rocky Mountain has raised the ebike bar to a new high with the Altitude Powerplay.
You've gotta get up to get down and one of the purposes of e-bikes is to make it much easier to do so. Since we spend significantly more time climbing than descending, we felt it was important to rate how well these bikes perform when pointed uphill. Climbing on an e-MTB with pedal assist support is somewhat different than climbing on a bike without a motor. These bikes are capable of carrying some serious speed uphill, changing the climbing dynamic with a much faster pace, often tossing finesse out the window in favor of power and momentum. The heavy weight of these bikes and plus-sized tires gives them incredible traction, keeping them planted on the ground, and dampening switches can be left wide open to enjoy the added traction benefits of active rear suspension. Each bike's geometry, handling, and power output all played a role in how well these bikes performed on the ascents, and we had plenty of time to test them while rallying back uphill for more downhill laps.
He would struggle to ride a normal bike very far but is thinking of getting an E bike to get him back into cycling with his young son. Knowing how destructive I used to be at a lower body weight, can anyone recommend a very sturdy E bike? He doesn't have a lot of money and I just worry he could get a bike which will not be able to take his weight. Any suggestions for a bike available here in the UK would be much appreciated.
I used to mountain bike quite a lot. I was a fairly strong 17 stone (238lb) weightlifter and rode pretty fast but didn't go in for big air or jumps. Nevertheless I used to break bikes at a ridiculous rate. I broke the bottom bracket off a Marin titanium frame, I broke the bottom bracket off of a Roberts hand built mountain bike. I snapped 2 pairs of handlebars, broke cranks, pedals, chains, wheels, spokes and forks etc etc.
eMTBs appeal to an extremely broad target group: some use their eMTB for daily commuting, others for after-work or weekend rides on maintained gravel roads, and others plan to do an electrified alpine traverse or even an action-packed visit to the bike park. The good news is that many eMTBs are jacks of all trades, covering a very wide range of uses. Others, unfortunately, may disappoint with poor spec or nervous handling.

    Electric bikes and E-bike kits (bikes with electric conversion kits) are part of a wide range of Light Electric Vehicles (LEVs) that provide convenient local transportation. Generally designed for one person and small cargo capacity, electric bike range, speed, and cost are moderate. For most of us, the majority of our trips are less than 20 miles - within the range of most e-bikes considering the latest advances in affordable lithium batteries. Clean, quiet, and efficient LEVs offer the advantages of an extra car without the burdens.
Introducing a fully integrated, electric-assist mountain bike that takes our Altitude’s legendary handling and ride quality and adds a compact, powerful drive system. The new Powerplay™ drive system was designed in parallel with the frame, delivering ultra-short chainstays, optimised suspension kinematics, super-low centre of gravity, and class-leading torque. The result is an e-MTB that actually rides like a proper mountain bike—perfect for everything from self-shuttling all mountain trails, finding flow between the descents, and squeezing in power lunch rides. 
Remember the freedom, fun, and sense of accomplishment that your first bike gave you? Well, these days, kids can share that excitement at an even earlier age with our collection of kids' bikes and equipment. From toddler-friendly walk bikes to pint-sized helmets, we have everything you need to get your little ones away from the screen and out on their bikes.

A 2008 market survey showed that the average distance traveled in the Netherlands by commuters on a standard bicycle is 6.3 kilometres (3.9 mi) while with an e-bike this distance increases to 9.8 kilometres (6.1 mi).[79] This survey also showed that e-bike ownership is particularly popular among people aged 65 and over, but limited among commuters. The e-bike is used in particular for recreational bicycle trips, shopping and errands.[79]
Just a few years ago, the thought of a hardtail conjured up images of Lycra®, not all-out trail ripping. Today, however, the Fuse hardtail trail bike has turned that notion on its head. It all starts with our new 6Fattie wheel system and ends with our revolutionary Diamond Stay design. And when you mix it all with low, slack geometry, you get a bike that climbs like a hardtail and inspires confidence like the best trail bikes we've ever made.

REBEL electric bikes powered by the Yamaha central motor create Dynamic and Responsive Power. It also enables the use of a conventional groupset and offers no resistance in «no assistance» mode. The eMTB bikes range have an “External DT System” battery, located in the front triangle and integrated with the design of the frame. The relative position of the less lightweight parts of the system (motor and battery) enables a low center of gravity, guaranteeing a reactive and stable ebike. See the REBEL electric bike models...


Your friends: We all have friends we wish wanted to pedal up hills with us. Many of who might be capable of leaving us in their dust on descents. These are young and old riders; riders lacking the fitness, time, motivation, or who just aren’t interested in climbing alone, at the back of the pack. You’ve done everything to get them back out riding with your regular crew, but pride and reluctance to hold the group back is keeping them away. 
Is it sensible to buy an eMTB for well over € 5,000? Probably not. Will you feel cool buying one of these bikes? You most definitely will! These bikes are the supercars and luxury sedans among eMTBs, where the best bike manufacturers in the world have pulled out all the stops regarding design, detail, and technical sophistication. Yet, while some of them tend to remind of a 911 when it comes to handling, others ride like a Hummer H2 – the price tag alone doesn’t predict anything about the actual performance of a bike. In our search for the best eMTB of 2018, we tested the twelve most promising models.
Torque sensors and power controls were developed in the late 1990s. For example, Takada Yutky of Japan filed a patent in 1997 for such a device. In 1992 Vector Services Limited offered and sold an e-bike dubbed Zike.[9] The bicycle included NiCd batteries that were built into a frame member and included an 850 g permanent-magnet motor. Despite the Zike, in 1992 hardly any commercial e-bikes were available.
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