Though aside from the extra battery and abundance of included accessories, Riese and Muller’s use of a Gate’s belt drive means no shifting of gears, no greasy maintenance, and much higher durability. If you have the money to spend, Riese and Muller’s Delite nuvinci is one of the best on the market and an ebike we just couldn’t get enough of during our own tests.
Another type of electric assist motor, often referred to as the mid-drive system, is increasing in popularity. With this system, the electric motor is not built into the wheel but is usually mounted near (often under) the bottom bracket shell. In more typical configurations, a cog or wheel on the motor drives a belt or chain that engages with a pulley or sprocket fixed to one of the arms of the bicycle's crankset. Thus the propulsion is provided at the pedals rather than at the wheel, being eventually applied to the wheel via the bicycle's standard drive train.
On a trip to Palo Alto last year, we had the chance to ride Specialized’s pedal-assisted Turbo Vado and the model is still our favorite ebike on the market. Utilizing a 350-watt motor and 604-watt-hour lithium-ion battery, the Turbo Vado is capable of traveling a whopping 80 miles on a single charge, which should be more than enough for any daily commute with plenty of miles left over.

7. Winner selection and notification: Winners of the Sweepstakes will be selected in a random drawing under the supervision of the Sponsor. Winners will be notified via e-mail to the e-mail address they entered the Sweepstakes with within five (5) days following the winner selection. Electric Bike Technologies LLC shall have no liability for a winner's failure to receive notices due to winners' spam, junk e-mail or other security settings or for winners' provision of incorrect or otherwise non-functioning contact information. If the selected winner cannot be contacted, is ineligible, fails to claim the prize within 15 days from the time award notification was sent, or fails to timely return a completed and executed declaration and releases as required, prize may be forfeited and an alternate winner selected. The receipt by winner of the prize offered in this Sweepstakes is conditioned upon compliance with any and all federal and state laws and regulations. ANY VIOLATION OF THESE OFFICIAL RULES BY ANY WINNER (AT SPONSOR'S SOLE DISCRETION) WILL RESULT IN SUCH WINNER'S DISQUALIFICATION AS WINNER OF THE SWEEPSTAKES AND ALL PRIVILEGES AS WINNER WILL BE IMMEDIATELY TERMINATED.
FRAME GEOMETRY  EcoBike electric bikes have been specially designed with the daily commuter in mind. The frame is constructed from a high-strength, lightweight 6061 aluminum alloy that maximizes safety and durability.  The enhanced frame design features comfort ergo-geometry that is more upright than a traditional mountain or road bike.  Every EcoBike electric bike is outfitted with suspension on both front forks (except Vatavio) and seat post to deliver a smoother ride. 
The downside to this mountain-bike build and specification is obviously the weight, at 24.5kg the Trekking feels heavier than the other bikes on test, and rightly bills itself as suitable for heavier riders, too. As with the other bikes here, this is only really a problem for smaller riders, or riders needing to take the bike up or down steps regularly. With its bomb-proof build, full guards and heavy-duty rack, the Haibike is the perfect choice for a burly rider or for doomsday preppers, ready to out ride the apocalypse.
The G-10 features a top-tube mounted on-off button and ‘set’ button for one of four power modes, all linked to a Groove Go wheel mounted motor via a removable clip-lock battery stashed under the down-tube. Kalkhoff has paired this with a mid-range Shimano Tiagra 1x10 speed drive-train and effective Shimano M396 hydraulic disc brakes. A nice touch is the anti-slip ‘grip-tape’-covered flat pedals, perfect for a bike to be ridden around town without specialist shoes.
Electric bikes are here in a big way. Liberated from some of the normal constraints of standard bike design like weight and gearing, e-bike design has exploded; if you can imagine it, someone has built it. From cargo bikes to city bikes, messenger bikes to mountain bikes, road bikes, and even beach cruisers, there is something for everyone. The beauty of e-bikes is they make the joy of cycling accessible to so many people in so many ways.
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