ElectricBike.com

This is the most powerful production mid drive kit that you can run through the bikes gears, and the big surprise is how quiet it is. We bought the first two production kits before they were even produced. I say that up front to give you an idea of how we feel about this particular mid drive kit. There is quite simply no other kit that you can add to your bike that comes close to what this kit can

High performance requires high amps, but LiPo batteries can be dangerous for someone who is inexperienced with them. LiPo is capable of putting out VERY high current (the C-rate), and if you are building a racing E-bike, they are simply the best choice. A LiPo pack will be smaller, lighter, and will put out more peak and continuous amps than any other pack you can buy. The problem is that…for E-bikers who want something that is much safer, but has better performance

Some of the most refined electric bikes on the market are mid drives. And until recently, if you wanted a mid drive electric bike you were limited to buying an under-powered and overly-priced 250-watt Euro electric bike. Or…if you wanted a powerful bike, your only choices then were a $10,000 plus USA bike (like the Optibike or the Hanebrink). Recently, several notable mid drive kits have come onto the market which allows someone on a budget to build a mid

Zvonimir is an engineer who lives in Croatia, between Italy and Greece on the beautiful Adriatic Sea (ES member HAL9000V2.0). In a recent story, we told our readers how he developed the Greyborg Warp frame, so builders could have the option of an electric bike that was heavy-duty, and could also hold the largest possible battery volume. It is a big success with over 200 frames sold worldwide to date. But Zvonimir doesn’t just design things by using computers, he

AstroFlight is a maker of high-end RC motors and components for RC-helicopters and model planes. Their headquarters are located in Irvine, Southern California. This month they have announced the

This is an affordable and useful mid drive, if you think you would be happy with 750W…and live where there are hills. Quite a few buyers who have heard about the GNG kits opted for the 1,000W-2,100W  big-brother kit (article about the GNG 1,000W here), that has proven itself to be a very capable and versatile off-roader. The GNG-Gen2 kit featured in this article is listed as the 350W/400W brushless kit depending on which voltage you choose. The GNG 1,000W kit has

The BionX is  the best selling hub motor kit in the United States, and probably  the world. The Bionx is not only sold as a kit, but many manufacturers use it as a turn-key solution to very quickly bring a quality ebike to market. These manufacturers have included, Trek, Ohm,  Smart and Grace.  Unlike most kits, the BionX is designed and manufactured not in China, but in Ontario Canada. At least some of (if not most of) the components of the BionX kit

We have waited to write about the GNG kit because it proved to be immediately popular (electricbike.com’s leader Eric stumbled across the new GNG site in Aug 2012, about six months ago), and the inevitable upgrades that endless-sphere builders added were rapidly defining the strengths, weaknesses, and limits of this handy kit. Bottom-Bracket (BB) drives have really taken off this last year, and for good reason. The prices for the basic parts have come down, and the selection has improved too. Part

A torque sensor is a type of throttle that determines how much juice to feed the motor based on how hard the rider is pedaling. This is different from a cadence sensor which measures simply how fast you are pedaling. Cheap cadence sensors are what can be found on most pedal assist system (PAS) bikes on the market today. When done right, a torque sensor can make you feel bionic when you ride your ebike. It allows for a more

The electric bike builder marketplace is full of cottage industries.  This is a list of vendors for people who are considering building an electric bike themselves.  The shops below are owner operated with at most   a few employees.  Every vendor on this list is known to be reputable and knowledgeable. This list is current as of Summer  2012.  We will add and take away names off this list as the industry develops.  As of this writing these are the big