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.
Over the last few years, I’ve taken my love of the outdoors, hiking, skiing, trekking and exploring to the next level by starting this site. I started a bike shop in Denver, CO, and have seen amazing growth over the last few years. Getting paid to do what I love has been a dream come true for me. That’s also what led me to start BikesReviewed.com. In my shop, I spend a large amount of time helping people find the perfect bike for them and the style of biking they’re going to be doing. It only made sense that I expanded my reach and got online, making it possible for me to help people all over the world. If biking and staying fit is your priority, too, you’ve come to the right place.

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.
The Men's Tarmac doesn't do one thing well, it does everything exceptionally—which is why it's been ridden to victory in all three Grand Tours. The new Tarmac's advanced materials and aerodynamic design add a modern edge to the lively character of a classic race bike, while its Rider-First Engineered™ design ensures that the Tarmac sprints, corners, and descends with uniform excellence across every size.
If you really want to see the future take a look at the Fazua Evation, with a battery and motor this system weighs an incredible 4.7kg! The battery only has 250wh, but at 1.3kg you could easily carry a spare in a pack. The really interesting thing about this system though, is the motor and the battery can be removed from the frame, so you really do have two bikes in one.
Controllers for brushed motors: Brushed motors are also used in e-bikes but are becoming less common due to their intrinsic lower efficiency. Controllers for brushed motors however are much simpler and cheaper due to the fact they don't require hall sensor feedback and are typically designed to be open-loop controllers. Some controllers can handle multiple voltages.
Just take a look at the Kenevo and you know it wants to go fast. Downhill. And probably destroy every turn it sees. The tank-like aesthetic and aggressive geometry does indeed allude to the bikes intended purpose. If downhills are your thing, the burly Kenevo is your friend: it’ll get you to the top with ease but, once the seat drops, you won’t be able to stop it. There’s not a lot more to be said about it – the best in its class…
The Spectral:ON 7.0 helps you to try new ways, to shift boundaries and to sit in the saddle more often. The Enduro configuration with rigid RockShox Lyrik RC suspension fork and RockShox Deluxe R shocks tames the roughest trails. The E-MTB-specific DT Swiss H1700 Spline wheels are fitted with robust Maxxis Minion tyres that offer maximum grip and control downhill. The Shimano Zee brakes from the freeride sector with 200 mm large brake discs at the front and rear are very powerful - there is no more control and safety in this class. The 165 mm short cranks guarantee the best possible ground clearance. The Kind Shock Lev Integra SI Vario seat post can be lowered at the push of a button when it gets steep. All in all, the Spectral:ON 7.0 is your ticket to trails that otherwise might not have been accessible.
In Stock & Free Shipping Now! COLLAPSIBLE ALUMINUM ALLOY FRAME: Adopts ultra lightweight yet strong aluminum for quick folding and easy storage; high carbon steel suspension fork; anti-rust and anti-exposure painting material. LARGE CAPACITY LITHIUM BATTERY: 36V/8AH li battery supports 15km/h ( E-Bike Mode ) to 25km/h ( Assisted Mode ) ridding. Equipped with smart lithium battery charger for fast charging (4-6 hrs). ULTRA STRONG WHEELS: The foldable electric bike has 26-inch bead spoke wheels are made of aluminum alloy and anti-slip wear resistant thick tire. Suit for Rainy snowy mountain way and roadway. BRAKE & MOTOR SYSTEM: Mechanical front...
Introducing the future of performance and comfort, the Kinekt BodyFloat seatpost. The innovation isolation system, designed here in Washington, greatly enhances the endurance and enjoyment of riding a bike. Engineered to be infinitely tunable to fit your personal riding style and weight, Seattle Electric Bike is proud to offer this breakthrough seatpost for all your biking adventures.
What exactly is an electric bike? How can they be used for transportation and why do they make financial sense? These are some of the questions my site http://electricbikereview.com and this channel aim to help you answer. This particular video provides an overview of the Easy Motion Neo Jumper ebike and then follows me on an actual commute to work in Austin Texas.
The Spectral:ON is our most challenging development project to date. With the focus on the essentials, it was our clear goal to design an E-MTB that rides like the perfect trail bike. The result is already award-winning: modern trail geometry, wheel concept with 29/27.5" wheels front and rear, plus Shimano's powerful Steps E8000 drive. With the support of the engine, Spectral:ON expands your horizons: more trails per hour, trying out new ways and pushing the boundaries. You master even steep, technical climbs playfully and enjoy the agile handling and the outstanding smoothness in fast passages downhill. Space for bottle holder, geometry adjustment and lightning-fast battery change? Standard! We've taken every detail into account to give you the ultimate E-MTB driving experience.
The first thing many cyclists do when checking out a new bike is give it a lift to gauge the weight. You’re in for a little scale shock if you try that with an e-bike. The battery, motor, extra components, and reinforced frame make e-bikes inherently heavier than standard bikes—to the tune of about 20 pounds. Modern geometry and engineering help them handle well despite their weight, and obviously the motor-assist makes the extra pounds disappear when you start to pedal. But you’ll need more muscle to get them on your car rack or up and down stairs.
All too often, tech breakthroughs are measured in wattage efficiency and seconds saved, but we asked ourselves, 'What about the other things that make for an awesome ride?' The answer takes shape in the Alibi, with tires that'll never go flat, a chain that won't rust, and a geometry that just screams comfort. It's everything you need to hit your goals, whether they're to get in shape or get around town in style.
BattleBots legend Christian Carlberg and his company C2 Robotics are using Electric Bike Technologies direct drive hub motors to power 'OverDrive', their latest BattleBot on ABC!   Team C2 Robotics is set to battle again tonight at 9pm EST on ABC! For the past two decades Christian Carlberg and the C2 Robotics Team have been making remote control mobile platforms for commercial, military and the entertainment industries. With the advance of brushless...
Not the best bike but good for what it is. 250watt. not enough power even for small hills on its own and does not do 15/hr even on flat ground. battery looses power when cold but still works. Over all so far, dispite the above I give it 4 stars because it is what you would excpect in a cheap bike and it does work. There is no braket for the headlight tho so be warned you will have to improvise on that.
Consider, too, that more than half of all driving trips are shorter than 10 miles, with some surveys reporting that the average single trip amounts to just 5.95 miles. That’s a no-brainer distance to cover by e-bike. In fact, the survey found that owners replaced 46 percent of their car commutes and 30 percent of their driving errands with e-bike rides. All you need is a great commuter bag to carry your stuff, and you’re set.
Consider, too, that more than half of all driving trips are shorter than 10 miles, with some surveys reporting that the average single trip amounts to just 5.95 miles. That’s a no-brainer distance to cover by e-bike. In fact, the survey found that owners replaced 46 percent of their car commutes and 30 percent of their driving errands with e-bike rides. All you need is a great commuter bag to carry your stuff, and you’re set.
The first functioning electric motor was displayed in the early 19th century, though the device constructed by British scientist Michael Faraday did little more than swirl a wire around a magnet when an electric charge was introduced. Still, the concept proved that electricity could do work. Functional electric motors would follow in many forms after that achievement in 1821. Soon scientists and tinkerers around the world, including visionaries such as Nikola Tesla, were experimenting with all manner of electric motors -- some worked with DC power, others with AC. By the end of the century, myriad electric motors had been produced, capable of exerting enough force with enough reliable control that they were practical for use in myriad applications.
Prodeco V5 Phantom X Lite 9 Speed Folding Electric Bicycle is a lightweight and well-balanced bike that is suitable for all adventurers, campers, and sports enthusiasts. It gives an outstanding and smooth performance with a 300-watt motor. It is an eye-catching bike that looks fabulous in black color. Plus, you can carry it with you by simply folding it.
Nothing beats the thrill of discovering a new route by yourself, except the joy of sharing that route with your friends. The Dolce is your escape vehicle for long rides, short rides, and all that good stuff in between. Always up for a challenge, and built with our Women’s Endurance Geometry, its smooth and stable handling helps you push boundaries, while vibration-damping Zertz in the fork soak up road bumps for a smooth, fatigue-free ride.

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.

In a friction drive motor, a small, solid wheel rotates against the side of the tire in order to drive it. The first motorcycles used the same concept, with a motor mounted above the front wheel. The problem is that the drive rubs at the side of the tire. It's inefficient, and it quickly wears the sidewall away. Tires need to be replaced every couple hundred miles. For this reason, you'll seldom see electric bikes with this type of drive anymore.
Having a motor bolted to the bottom of a mountain bike that provides pedal assistance is an amazing leveller. The constant torque it applies to the chain rounds out the squarest of pedalling actions, which in turn helps stabilizes the rear suspension and counter pedal induced bob, seamlessly shifting your focus from pedalling efficiency to battery life.
With an electric mountain bike (or e-MTB) that gives you assistance up to 25kph, it’s possible to pack twice as much riding into the same amount of time. Those five great trails that you normally ride after work can now be ridden twice. That boring singletrack climb on your lunchtime loop suddenly becomes the highlight of your day. With the extra push from the motor it’s easy to double the distance covered, or do the same ride in half the time.

E-bikes use rechargeable batteries and the lighter ones can travel up to 25 to 32 km/h (16 to 20 mph), depending on local laws, while the more high-powered varieties can often do in excess of 45 km/h (28 mph). In some markets, such as Germany as of 2013, they are gaining in popularity and taking some market share away from conventional bicycles,[1] while in others, such as China as of 2010, they are replacing fossil fuel-powered mopeds and small motorcycles.[2][3]
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