DRIVE MOTOR The EcoBike is powered by an innovative hub-mounted, brushless permanent magnet motor with a triple planetary gear drive system and proprietary heat resistant materials. The propulsion system delivers the highest torque and is the quietest in its class. The drive motor is nominally rated for continuous output at 360 watts (Elegance & Adventure) and 290 watts (Vatavio).
This thing is also kitted out with a full SRAM groupset, RockShox Yari RC front shocks, Custom Fox Float suspension at the rear and enormously punchy SRAM disc brakes at the front and rear. Fundamentally, it's a mighty off-road machine with pro-spec kit that introduces a new style of trail riding, allowing adrenaline junkies to ride further, climb harder and descend faster than ever before.
There are individuals who claim to have lost considerable amounts of weight by using an electric bike. A recent prospective cohort study however found that people using e-bikes have a higher BMI. By making the biking terrain less of an issue, people who wouldn't otherwise consider biking can use the electric assistance when needed and otherwise pedal as they are able. This means people of lower fitness levels or who haven't cycled in many years can start enjoying the many health benefits E-bikes have to offer. 
Riese & Muller’s Nevo line definitely tops my list for commuting electric bikes. These bikes are premium, custom made bikes for a reasonable, middle-of-the-road price. All Riese & Muller bikes are hand made in Germany exactly to your specifications. The Nevo line specifically is incredibly well balanced and keeps riders in a comfortable, upright position. Riders also get a suspension seatpost (either the Cane Creek Thudbuster or Satori Elegance LT), which is a nice compromise between the full suspension Homage line and a complete hardtail.
Range is a key consideration with e-bikes, and is affected by factors such as motor efficiency, battery capacity, efficiency of the driving electronics, aerodynamics, hills and weight of the bike and rider. Some manufacturers, such as the Canadian BionX or American Vintage Electric Bikes, have the option of using regenerative braking, the motor acts as a generator to slow the bike down prior to the brake pads engaging. This is useful for extending the range and the life of brake pads and wheel rims. There are also experiments using fuel cells. e.g. the PHB. Some experiments have also been undertaken with super capacitors to supplement or replace batteries for cars and some SUVS. E-bikes developed in Switzerland in the late 1980s for the Tour de Sol solar vehicle race came with solar charging stations but these were later fixed on roofs and connected so as to feed into the electric mains. The bicycles were then charged from the mains, as is common today. While ebike batteries were produced mainly by bigger companies in past, many small to medium companies have started using innovative new methods for creating more durable batteries. State of the art, custom built automated precision CNC spot welding machines created 18650 battery packs are commonly used among Do-it-yourself ebike makers.
Should an e-bike actually look like an e-bike? Vanmoof think so. With a design and engineering sensibility that’s more Silicon Valley startup than heritage bike brand, Vanmoof is probably the most WIRED of the bikes on test. And the Electrified S has a host of features to prove it. The Bluetooth/proximity activated e-lock (with tamper sensor) that’s built into the frame is a clever innovation, although we're not sure this would be enough theft protection for inner city areas, (where the Vanmoof’s striking design stands out like a jewel on the bike rack). However, for €7 a month, if your bike is stolen, Vanmoof will track down your bike – or replace your bike with a model of the same age if they can’t retrieve it.
Sometimes space comes at the most premium of commodities and the Tern Vektron offers a space-saving folding option. At about $3,400, the sturdy folding joints include a magnet and rubber strap to keep the bike folded. The quick-release pedals (wheels release too) help with storage of a bike that doesn’t give up power with a 20-mph speed that can range over 60 miles. But the best part is placing two in the trunk of a car.
You should also think about how much gear you are going to need to carry. The reason this will affect your decision is because some electric bikes don’t have the capability to mount a front rack while others do. Plan on doing a 3-day trip? You could probably get away with just a rear rack. My advice though would to be to purchase an electric bike with the capability to mount a front rack as well. This way, if you decide to plan a longer trip in the future, you can simply buy a rack and be on your way instead of potentially having to buy a new bike.
Thanks to clever engineering, the Electric Brompton folds up identically to the non-powered variety. It is heavier than a standard Brompton of course, but quite light by e-bike standards. It has small , suitcase-style additional wheels that come into play once folded up, and the way the weight is balanced means it is quite straightforward to trundle along in that state.
OHM bicycles use E-One Moli Energy (Canada) Ltd’s Lithium-ion battery packs to deliver the safest and highest power of any mid-large e-bike battery currently available on the market. With advanced protection, performance, and convenience, Li-ion batteries are fast charging and maintain steady power output throughout their lifespan. The e-bike battery packs are specifically configured to work with the BionX motor for optimum range and performance.
We found the Groove motor a little laggy in engagement, with often almost a full rotation of the cranks before the assist engaged - compared with the Gazelle and Vanmoof, the pick-up was frustrating. Putting our issues with the assist to one side, we couldn’t fault the aesthetic: we loves the semi-mixte frame style, a practical non-gender specific design.
Is it worth $1700? I’ll let you be the judge. I don’t have a lot of experience with commuter ebikes so I don’t know how it compares. I do know that most of the ebike conversions I’ve seen look like science experiments. The Buffalo could pass for a normal bike, and look a little more accessible to a first time ebike user. So, although I’m not planning on riding this, I am planning on using it. So I’ll keep it around for a while and let you guys know what I think long term.
As with all these bikes, the assisted speed is capped at 15mph, but unlike some of them, the Gtech eBike City or its identical (spec-wise) sibling the eBike Sport (this just has a standard frame rather than a step-through one) is light and agile enough for you to be able pedal harder without feeling like the weight is fighting you back down to 15mph. You can even, at a push, use it without the motor on flatter roads.
There are two main types of motor to suit different riding styles. The durable, "heavy duty" Direct-Drive motor, and the lightweight, efficient and fast "performance" geared motor. Electric Bike Motors, hub motors in particular, and electric bike batteries are what make electric bicycles go. Using a hand throttle you control the flow of electric current from the battery to the brushless motor. With an intelligent 20 Amp controller regulating the...
The features continue with integrated lights and a minimalist display set into the top tube that relays charge, speed and level of assist. The most exciting aspect to the Vanmoof though is a setting on the app that allows you to toggle your bike’s speed limit between European 25kph and more generous (but not entirely legal) 30kph United States limit. That cheeky extra 5kph is enough to make the Vanmoof the bike for city riding at pace. The S also features a Turbo Boost button (that puts the motor at full assist), which was a welcome bonus nipping across busy intersections or powering out of a tight corner where your speed has dropped.
Come for the price, stay for the awesome. The August Live! LS is one of the lower-cost e-bikes you’ll find. What it lacks is gadgets it makes up for in flare and retains just what you need. You won't find a digital display or integrated lights, Instead you get trendy, chopper-style handlebars, a sweet paint job, and a 250 watt motor that is more than capable of tackling steep hills without a second thought. That said, this bike just begs to be ridden on casual cruises down the boardwalk or bike path.