Shell Eco-Marathon Americas Competition 2015 1st and 2nd Place Winners Both Used an Electric Bike Technologies Hub Motor! The Mater Dei Supermileage 3 Team of Mater Dei High School, in Evansville, Ind., took the top spot in the Battery-Electric Prototype category. The team built a vehicle using an electric bike motor from Electric Bike Technologies USA and won the electric plug in class at the 2012, 2013, 2014 and 2015 Shell Eco-Marathon Americas. They...
Because the power is applied through the chain and sprocket, power is typically limited to around 250–500 watts to protect against fast wear on the drivetrain. An electric mid-drive combined with an internal gear hub at the back hub may require care due to the lack of a clutch mechanism to soften the shock to the gears at the moment of re-engagement. A continuously variable transmission or a fully automatic internal gear hub may reduce the shocks due to the viscosity of oils used for liquid coupling instead of the mechanical couplings of the conventional internal gear hubs.
The Ancheer Power Plus can be ridden in pedal-assist mode or fully electric. The removable battery can be charged on or off the frame in 4-6 hours and you’ll get up to 31 miles from a single charge (15 miles if you don’t want to pedal). It’s a great bike for short commutes and light off-roading, though if you’re tall, you may find the one-size-fits-all approach doesn’t fit you.
The Moterra is Cannondale’s biggest and baddest e-mtb and just looking at this thing you can see that it’s built to withstand some wicked downhills and big drops. With 130mm of front and rear travel, paired up with 27.5-inch wheels and trail-grabbing 2.8-inch tires, along with a KS LEV Integra Dropper Post make this pedal-assist mountain bike a great option if you want to climb farther to shred longer, but don’t want to lug your bike uphill for ages. The 250w motor, placed slightly farther forward than most other bikes to optimize weight distribution and handling, will give you a nice boost so you can enjoy the ride up and not be too gassed when you get to the top. After all, it’s all about the ride down, right?
The Riese & Müller Load Touring HS is billed as “the ultimate minivan of e-bikes,” and it holds up to that claim. With a low center of gravity (aided by the 20-inch front and 26-inch rear wheels) the Load is easy to handle. Tektro hydraulic disc brakes add control, and front and rear suspension provide comfort. The Bosch motor offers an assist up to 275 percent of your effort until you hit 28mph, when it cuts out. The massive cargo space (with side walls) can carry and the two 500Wh batteries give you 12 hours or more of range at full power. It’s capable of toting up to 220 pounds of pets, people, and less-animate cargo. R&M also sells a double child seat for kids up to age 6 and a child-seat fastener for your youngest passengers.
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. 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.
On the other end of the pricing spectrum (although not as high-end as possible) falls the Riese & Muller lines. The Nevo line, which features a Bosch motor, hydraulic disc brakes and speeds up to 28 mph also has a roughly $5,000 sticker (a variety of models allows for a cheaper price). Using a carbon belt and Nuvinci grip shifter, maintenance worries lessen. The German-made premium models are hand made to specifications and comfort reigns supreme.
At the end of the day, you'll have a ton of fun riding one. “There’s that nostalgic feeling that kicks in whenever you’re on one, that feeling you got when you started riding as a kid," LaLonde says. You might have to get on one to understand, but there are few things more smile-inducing than floating up a steep hill with little effort, Mary Poppins-style.
This bike impressed me right when I saw it. I love that Haibike offers spec-heavy options with the Yamaha PW system. I think the PW system gets a bad rep sometimes for being less powerful than the Bosch, but to be totally honest not everybody needs the power of a Bosch system. Haibike makes up for the lower torque of the PW system by offering a premium Shimano Deore XT drivetrain with 20 speeds. This is great for riders who want to stay in the action a bit more, but still not arrive sweaty and out of breath.
Standard front suspension is the 7â€ conventional single crown forks. With 2 dials to adjust compression and rebound adjustment and air adjustment for preload, these forks are light weight and versatile enough for most situations. For heavier or more adventurous riders, the forks can be upgraded. The rear suspension is adjustable for casual every day riding or more aggressive off road environments.
Although ebikes are easier to use in some instances, such as climbing hills, there are safety concerns. Because the bikes are heavier than traditional bikes, balance can be a problem. And, of course, ebikes allow people to cycle at higher speeds than usual. “A normal rider will average between 12 to 15 mph, where an ebike rider will average between 15 to 20 mph,” Abadie says. An increase in the number of deaths of elderly male ebike riders in the Netherlands has been attributed to their overconfidence in being able to ride at high speeds and to mount and dismount the bikes.
Ironically, not only would a US e-bike manufacturer need to import the raw materials for their frames, but they could still be subject to import tariffs that the Trump administration has placed on imported steel and aluminum from China. Thus, the e-bikes could end up even more expensive than just US-built e-bikes, as customers would also have to pay for the higher cost of the imported raw materials.
As a counterbalance to the cute utilitarian bikes above, the Specialized Turbo Levo FSR Comp is a big, bad, and burly mountain bike. With 27.5-inch wheels, massive 2.8-inch tires, 150mm of travel in the front and 135mm of travel in the rear this bike is made to shred. The Specialized 1.3 Rx Trail-Tuned motor is designed specifically for off-road riding and features a double freehweel design that disengages the gear box at top speed to reduce friction while ripping downhill. The low center of gravity and stout parts make this one a relatively nimble handler that is ready for the rowdiest downhills.