The time or distance an electric bike battery will run between chargings is impossible to judge with much accuracy. There are too many variables: terrain, speed, rider weight, bike load (shopping, kids, luggage), and more. However, we can make a few generalizations about an e-bike’s recharge time and overall working life. These generalizations should be used for comparison purposes only.
As a serious,but aging cyclist, have been considering the purchase of an electric assist bike for some years. My primary concern was that the bike needed to provide enough power to assist me to tackle some very steep hills and my weight is near 220 lbs. Having no experience with electric assist, I anticipated the 500 watt motor rating of this ... full review
Electric Bike Parts, what fits my older electric bike? What can I modify to fit my bike? A brief overview of what electric bike parts do, and how generic electric bike parts can be adapted to your bike. The Plugs, Wires & Connectors Hardly a day goes by without a call that goes about like this; "I have a (whatever) electric bike that I used to ride 6 years ago....
E-bikes mostly use motors and battery options from a few major suppliers: Bosch, Yamaha, Shimano, and Brose. A few other brands exist, but are less reliable or powerful. Some, like the Yamaha system, have more torque and others are quieter. But generally all four make good options. Look for motor output (in watts) which will give you an idea of total power. But watt hours (Wh) is perhaps a better figure to use—it takes into account battery output and life to give a truer reflection of power.
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.
For those looking for a fast, versatile, and highly capable full suspension ride should seriously consider taking the Powerfly 7 FS Plus for a spin. Reason being, not only does the ride host an integrated mountain-specific Bosch motor with a top speed of 20 mph, but a full RockShox suspension setup, mid-fat tires for enhanced stability, and high-end mountain bike components work to elevate your mountain biking experience for the better. From rough to nearly impenetrable terrain the Trek Powerfly could very well be the solution to your desired exploration.
Update: I've had the bike about 4 months now and ride it almost everyday, it is my primary form of transportation, and I have been pleased with it's overall performance, the battery is holding up pretty well and I've never not made it home without juice to spare, the only issue I've had is with flat tires so I wanted to highly recommend putting green slime in the tires, you do not want to have to deal with getting the back tire off for a flat, but other than that the bike is running great, as others have said it is a little less powerful than you may expect but I am very satisfied with the build quality and quality of components. For saddle bags I got the type of bracket that wraps around the seat post and saddle bags meant for that kind of bracket and they have worked well for me, so I can carry my shopping and groceries easily on the bike now . http://www.amazon.com/gp/product/B0030RS5CA?redirect=true&ref_=cm_cr_ryp_prd_ttl_sol_18 http://www.amazon.com/gp/product/B00K6CEPGM?psc=1&redirect=true&ref_=oh_aui_detailpage_o08_s01
This bike is named the GSD because with it you can Get Stuff Done. Twenty-inch wheels keep the center of gravity low so heavy payloads—it's rated up to 400lbs—are easy to balance and a short (for a cargo bike) 70-inch wheelbase, similar to a standard single bike, make the GSD easy to maneuver. Designed with the urban commuter in mind, the bike can easily break down to 60 percent of its original size to fit into the back of a car and the rear rack doubles as a stand that allows it to stand upright to minimize space inside tight apartments. Put two child seats on the back and take the family along, or drop the seat and let you kid take the bike out himself—anyone from 4'10" to 6'5" can ride this bike. Last but not least, the GSD gives you the option of adding a second battery to extend your range up to about 150 miles on a single charge.
Due to high total weights of over 20 kg, it doesn’t matter whether the scale stops at 21.44 kg or 22.2 kg for a modern eMTB. In our test, the difference between the lightest and the heaviest bike was just under 4 kg. This is not to be ignored… but a little extra weight in the form of functional, reliable componentry is better than an ebike designed and constructed to be as light as possible, at all costs, but which ends up in the workshop more often than on the trail.
Whether the terrain is flat or hilly impacts the distance you can travel, as does the weight of the bike, your own weight, the gearing available on the bike, and how much juice you give it. We suggest that a distance of 10 to 20 miles is a realistic expectation. Of course, if you're prepared to do at least some pedaling, you can extend that dramatically.
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.
The Liv Amiti-E+2 is a low-priced but highly versatile e-bike. It’s just as much at home on the pavement as it is on bike paths and rail trails. But don't feel constrained to groomed paths. Front suspension and 42mm-wide tires mean you can take on off-road detour on your way home from work. Speaking of work, this e-bike makes a great commuter thanks to rack and fender mounts and integrated lights for riding after dark. Internal cable routing and a nicely integrated battery make for clean lines and 9-speed shifters give you plenty of gearing options for whichever type of terrain you decide to tackle. This do-everything bike is great option if you’re riding includes a little bit of this and a little bit of that.
…but currently offer only very few advantages, such as a cleaner design and the option to mount a bottle cage in a front triangle. If you want to take a spare battery in your backpack, you will have to struggle with the larger dimensions of the integrated batteries, or you won’t have the possibility to take one with you at all. Depending on the integration, handling the integrated rechargeable battery (e.g. the on-button for Shimano-Intube) can be awkward. Also, the longer battery results in a higher centre of gravity. The fact is that there are good reasons for continuing to use a standard external battery.
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...
After you decide which style of e-bike you want, consider the class. In the US, there are three classes defined by the type of assist and how fast the motor will propel you. Most electric bikes sold are class 1 or 3. Class 1 bikes have a motor (max 750w) that assists while you're pedaling, up to 20 mph. Class 3, also known as “speed pedelec” can also have up to a 750w motor, but it can assist you up to 28mph. Both of those are allowed in most states and cities without license. Class 2 have throttles that don't require you to pedal to get a boost. They're allowed on most streets, bike lanes, and paths, but less popular than the other classes and not covered much here (because we still love to pedal and the greater distances pedal assist bikes can cover).
While I was waiting patiently for my 2017 model eBike to be manufactured and delivered, I came across an article in the local paper about a woman with a degenerative muscle disease who wants to take her eBike on forest service trails that are designated for mountain bikes. “What the hell?” I said, completely floored (what I actually said isn’t fit for publication). When I ordered this bike, the thought hadn’t even crossed my mind that it would be illegal to ride on mountain bike trails with my new, albeit electric, mountain bike.
Not all e-bikes take the form of conventional push-bikes with an incorporated motor, such as the Cytronex bicycles which use a small battery disguised as a water bottle. Some are designed to take the appearance of low capacity motorcycles, but smaller in size and consisting of an electric motor rather than a petrol engine. For example, the Sakura e-bike incorporates a 200 W motor found on standard e-bikes, but also includes plastic cladding, front and rear lights, and a speedometer. It is styled as a modern moped, and is often mistaken for one.
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.