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.
Cape Fear Community College students are utilizing the E-BikeKit™ electric bike kit in the designing and building of their own electric bicycles!   ORIGINAL ARTICLE POSTED by the Port City Daily staff "CFCC student-built electric bikes to be in Azalea Fest parade Some innovative designs by Cape Fear Community College students will be featured in this year’s N.C. Azalea Festival. For the past year, students in CFCC’s mechanical engineering program have been hard...
If you’re looking for an electric bike with a sporty assist that is effective above a "pootling" speed, this is your bike. The only downsides to all that connectivity? We experienced some random light flashing and occasional beeping on the stationary bike, as well as confusion with the bike not switching on occasionally. In some ways the connectivity is just a little too clever (read complicated) for its own good.
Dan has a lifetime of experience with bicycles and is a hands-on expert when it comes to converting bicycle to electric.  Dan is the person you will most likely converse with on Live Chat. He can assist with diagnosing any issues and he is more than happy to enlighten those who ask on almost any topic related to electric bikes. Dan has been riding electric bikes almost daily since 2008...
The Focus comes with lots of extras: front and rear lights, bell, fenders, chain guard and rack. The Panasonic drive system that powers it is the same unit that was on the Kalkhoff bike that climbed to the top of the Pikes Peak bicycle race, one of only 3 types of bikes to survive this 8000 foot 20-mile climb in 2012. The Panasonic drive system is a well built piece of E-bike engineering which drives the bottom bracket and powers the rear wheel through the same drive chain as the rider. It is only available on OEM bikes which have been-purpose built using it. It stands as one of the most refined mid-drive systems ever built.
A Kalkhoff Pedelec is a lot more than simply bolting a motor onto a great bike. Their electric-assist bicycles utilize a brushless DC motor system that is lightweight, precisely-controlled, efficient, low-maintenance, and reliable. The Panasonic drive system is center drive, meaning that it's designed to be in the middle of the bike for a low center of gravity, stability and an easy integration with the drivetrain. The drive unit is more than just a motor; it also has a torque sensor and controller unit as well - all in the weatherproof casing, surrounding the motor. The torque sensor and the controller senses how hard you're pedaling and adjusts how much assistance the motor gives you through the drive sprocket.
Above all, the Brompton is a lot of fun to ride in urban settings. Its powerful enough to breeze up hills with near zero effort, but feels nimble. As with any Brompton, you probably won't win a half-mile sprint on it, but thanks to the pedal assistance, you most certainly will get off to a flying start. The reason it stands above other electric bikes is that Brompton has worked out how to apply power assistance to your pedalling so it feels natural. It also doesn't feel so much like it's trying to fight you once you reach the maximum, 15mph assisted speed.
The Hanebrink all-terrain vehicle's lithium ion 10 amp hour battery (LiFePO4) will give the bike enough juice for about an hour's use on a single charge, which will take three hours. The rear rack could have up to five batteries fitted which will extend the run time to over five hours. The wide aluminum rear rack is otherwise capable of carrying over 100 pounds of cargo.

The final thing I love about this the Riese & Müller Delite GT Touring is the plus size tires. If you’ve ever been on a bike for the majority of the day, you know that any little bit of cushioning can make all the difference. Riese & Müller have provided this extra cushion in their tires. These tires are also excellent for wet weather and some light off-roading if you want to take a shortcut.
Features:Non-toxic,non-odor that is safe using.Widely using for electric bikes, bicycles,mountain bikes and more.High efficient electric core.Large capacity design.Professional replacement battery.Metal safety protective safety lock,easy disassembly and installation of battery.Repetitive discharge test,anti-collision and wrestling.Descriptions:It so lightweight which is so portable to be taken.Novel appearance and stable output.The input is more stable and the service life is longer.Specifications:Size:380*90*87mmPackage Size:410*190*140mmColor:silver & blackVoltage:36V Battery Capacity:10AH Max constant discharger current:15AMax current:45ACharger:2ABattery Type:Lithium batteryPackage included:1x Replacement Battery1x Battery holder1x Power Su.
However, Emu sells a little foldable number if that's your bag. The Emu Crossbar is for  town commuters that require a sweet ride that's backed up by solid Shimano Nexus hub gears and Tektro brakes, which are adequate if not the best on the market. Riding is smooth and easy, with the crank moving sensor doing its best to iron out any gaps in power delivery.
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.
ELECTRONIC CONTROL  The Zero-Smart-Start speed controller delivers ease of use and smooth drive control and offers a multi-function variable speed output.  It is state of the art, producing consistent efficient power.  The automatic Pedal Assist mode produces a power burst that dramatically assists the pedaling effort.  The Zero-Smart-Start electronic throttle control allows the rider to relax and not pedal at all. 
In terms of design, the attention to detail is just exquisite. The extra long fenders ensure you’re not going to get wet going through puddles. The cafe lock is hidden well enough to not ruin the look. I do kind of wish that the battery and fork could be that lovely green color, but we can’t have it all folks. For you green haters, it does come in white and black too. There’s also an option for this cute little front carrier if you want to put a bouquet and a baguette in it.
Tackle your daily commute with ease or go for a weekend cruise in style with the Gazelle CityZen T10 e-bike. And don’t worry about those thigh-burning hills; the Bosch motor offers four assist levels—Eco, Tour, Range Sport, Turbo—making hills a breeze and the Lithium-Ion battery provides a range of up to 85 miles in Eco mode. The bike is one of the first to use Bosch's new integrated battery, which is concealed in the downtube. The matte black paint and classic, step-through design give a classic look while fenders, pannier racks, and integrated lights add practical functionality. The bike is easy to maneuver in city streets, but still has assist up to 28mph so you can cover a lot of miles and power up steep hills. There's a suspension fork too. It's not at the level of something you'd find on a mountain bike (or even some better e-bikes) but it takes the edge of some potholes and curbs.
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