My left crank arm came loose and seems to have damaged the square bottom bracket mount. I assumed the bottom bracket was just a standard square taper, but noticed it says “8fun” on it. However, I can’t seem to find an 8fun bottom bracket available online, so I can’t figure out what part I need—I suspect there is a something obvious that I’m missing. Any ideas to get me back on the road? Thanks all.
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...
China's experience, as the leading e-bike world market, has raised concerns about road traffic safety and several cities have considered banning them from bicycle lanes.[2] As the number of e-bikes increased and more powerful motors are used, capable of reaching up to 30 miles per hour (48 km/h), the number of traffic accidents have risen significantly in China. E-bike riders are more likely than a car driver to be killed or injured in a collision, and because e-bikers use conventional bicycle lanes they mix with slower-moving bicycles and pedestrians, increasing the risk of traffic collisions.[2]

Ethics aside, that’s not to say we don’t at least admire where the technology has taken us thus far – and where it appears to be heading- thanks to some of the best electric mountain bikes on the market today. Some, naturally, are more rugged and built to withstand greater beatings than others. While some feature a price tag similar to that of a new Harley-Davidson. Whatever the case, if the disposable income is there, as well as the integrity not to abuse the power these electric machines offer, then they’re certainly yours for the taking. Just have a look at our eight favorite picks below and see for yourself.
Yukon Trails Outback Electric Mountain Bike is an affordable urban bike with a 24 volt motor of 250 watts. The lead-acid battery of 10 AH offers 28 miles in a charge. This mountain bike is manufactured in China. The bike has the solid tires of 1.75 Watt and 24 inches. It reaches up to the speed of 15 MPH due to the rim of 24 inches. You can smoothly ride the bike while enjoying the fresh air. The seat is comfortable to sit for a long time.
The seat is a long, tapering bench-style saddle common to this genre of e-bike. The design allows the same size frame to fit multiple sized riders. While it’s not quite the same as having a fully adjustable frame, e-bikes don’t require the same precision fitment due to their electric assist. When you’re using the bike like a motorcycle, you just kind of sit wherever is comfortable.
Whether you need a bike to help you stay fit and active, or you just want something comfortable to get around town on, we have a hybrid bike that's tailor made for however and wherever you ride. Each bike represents an intuitive design that's purpose-built for the task at hand. So get out and get exercising, rolling through woods, commuting—whatever. All that we care about is that you're having the time of your life on the perfect bike.
Stark Drive has always included a front head light by default at no charge for safety with the rear brake light being optional for those who needed this. Now we have reconfigured the homepage so that the rear headlight options i clearly visible and availble without needing to compllicate matters by adding it from our accessories page. We highly recommend a rear brake light no matter what motor you choose for Stark Drive.
“Rather than bolt on a bulky off-the-shelf system, we struck out on our own to redefine the category. The Powerplay system is the result of designing an electric drive for the suspension and geometry needs of proper mountain bikes; in fact, the geometry and pivot points of the Altitude Powerplay are identical to those of the new Altitude. In our opinion this is the first electric bike that actually rides like a mountain bike should.”
The Dew-E packs functionality and fun into a rather traditional and conservative package. Front and rear fenders, integrated Busch & Müller front and rear lights, and a built-in Abus wheel lock make this a very practical commuter bike. An 11-34t 9-speed cassette and 1.75-inch tires provide versatility: You’ll stay smooth over rough city streets and zip down gravel bike paths with confidence. Front and rear rack mounts also give you the chance to outfit this bike for carrying more cargo or supplies for a longer day on the bike. Whichever way you think you’ll be riding an e-bike, this bike deserves a second look.

Another really cool feature on this bike is the Haibike eConnect system. I’m not sure why, but they only seem to be offering it on the 10.0. It has been available in Europe for awhile, so I imagine we’ll see an upgrade for the other Haibikes sometime this year. eConnect offers riders a way to prevent theft on their bikes, track rides, and alert an emergency contact if it detects a crash.
Mountain bikes have come a long way since the 80s. Rock Shox showed up and eventually everyone had a hardtail bike. Then came dual-suspension bikes for all sorts of riding styles. My choice was a cross-country bike so I could climb fast and descend fast without the need for big air. Brakes have gone from simple calipers, to grippy Shimano V-Brakes, to bomber hydraulic disk brakes. While all this was going on street-focused eBikes were evolving too. It should be no shock that the technologies would merge to create eMTBs. A lot of people who were part of the mountain biking revolution in the 80s are getting older and eBikes allow them to continue the sport they love later in life. Whether it’s riders dealing with health issues or injuries, or simply just getting older, the emergence of eMTBs makes total sense.
On the road, it takes only a few turns of the pedals to activate the Vado’s motor and get it up to speed. In Turbo mode — the bike’s highest level of pedal-assist — the Vado reaches speeds of up to 28 miles per hour, after which the electric drive system automatically shuts off to conserve power (and abide by local law). A built-in LED readout on the handlebars allows riders to monitor battery life, check current speed, and track calories burned while also being able to glance at distance traveled. The Turbo Vado Mission Control app (iOS/Android) also connects to the bike via Bluetooth and allows riders to further tune their ride and adjust the bike’s settings.
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In Stock & Free Shipping Now! Please note that due to European anti-dumping duties, Eu Plug and UK Plug will increase by US$70 in one month. HIGH-QUALITY MATERIAL: The electric bikes adopt 100 percent aluminum alloy frame, the front fork is made of high-strength carbon steel and packed with premium comfort shock absorption, and also double layer aluminum alloy 26-inch wheel BRAKE & GEAR SHIFT SYSTEM: This electric bike with front and rear disc brakes and 21-speed transmission system, you can choose any speed according to your needs. The perfect brakes fully protect your safety. And the horn and the...
When you are one of the top car manufacturers in the world witnessing an ever-changing landscape of reluctant buyers, what should you do? Ideally, you take scope of what works and phase out what doesn’t. GM’s bold Bolt plan was to offer the electric vehicle (EV) as a personal means of transportation and a shared mobility platform through its Maven program. We haven’t heard much from that initiative and it seems GM is ready to get in bed with the top two ride-hailing companies, Uber and Lyft. Is GM a bit lost in its strategy? Or is it figuring out what works and sharpening its vision?

As a household name, Specialized is to be trusted in this world without a doubt. That’s because, in addition to their inventory of pedal-powered machinery, they’ve gone ahead and introduced us to their S-Works Turbo. Here, in conjunction with their custom Trail-tuned motor for off-road use, the Levo FSR frame is constructed entirely of FACT 11m carbon fiber allowing for both a lightweight and stiff ride through the local wilderness. Additional features include instant engagement, heat management, and a silent output for good measure. Not bad Specialized. Not bad at all.


Whether you're riding in the backcountry or racing enduro, you need a bike that's capable and efficient. After all, to ride 'all mountain' necessitates riding the entire mountain. That's why our Enduro line of all mountain bikes, both in 650b and 29er options, come equipped with loads of travel, lightweight constructions, and geometries that can handle themselves on anything from downhill tracks to stomach-wrenching climbs.
No day or ride is the same. Monday could be morning park laps, while Saturday might mean a day in the woods. If this is familiar, you need a bike like the CrossTrail. It has a responsive, durable aluminum frame, while our Body Geometry Fit science and a Multi-Circuit Damping fork ensure comfort over any terrain. Put it all together, and you have a bike that's just as versatile as yourself.
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.
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