There are various kinds and classifications of electric bikes on the market, but the more common type is the Class 1, or pedal assist, bikes which have motor units that are activated by pedaling and are limited to lower speeds. In the US, Class 1 electric bikes, the type tested and reviewed here, are limited to a top speed of 20 mph and their motors are designed with a speed governor to regulate this. These types of e-bikes resemble modern mountain bikes, but they have significant battery packs and small motor units integrated onto and into the frame design. The e-MTB pedal-assist motor is typically built around the bottom bracket and provides varying levels of pedaling "support" directly into the drivetrain while the cranks are turning. Most drive unit systems offer several support settings that provide pedal assistance between 25% and 100% of the user's pedaling input.
**The eBike uses a quick-release battery system. Lightweight 200Wh Lithium-ion battery packs can be swapped in seconds at the roadside. Each pack weighs just 1.4Kg, so spare battery packs can easily be carried for longer trips. The range that can be achieved from each pack will vary according to the conditions and effort exerted by the rider. Ranges of around 30 miles are normal per each full eBike battery charge. Less fit riders may achieve ranges of 10 miles or less, particularly in challenging conditions like steep hills, strong head-winds or soft terrain. The conditions which affect the range are rider fitness, weight, size and seating position, head or tail winds, gradient, terrain, tyre pressure, what gear is used, number of stop/starts and the speed the bike is ridden.
Basically, there is no reason to ride an eMTB with less than 130 mm of travel. With classic bikes, more travel usually means both less efficiency and poorer climbing characteristics, but this is not true with eMTBs – at least not up to a certain point. The best example is the Specialized Turbo Levo, which with its 135 mm of travel at the rear handles much better than most of the other, longer travel bikes in the group test. Also, eMTBs with suspension travel of 180 mm or more are often noticeably less efficient, as clearly exemplified in this test by the Haibike XDURO Nduro. It climbs a lot slower than other bikes using the same motor and the same level of assistance, an experience you will find with almost all other long-travel bikes from other manufacturers. The exception is the BULLS E-CORE EVO EN Di2: in direct comparison, it climbs a lot more efficiently, even though it also offers 180 mm of travel. The ideal compromise between uphill and downhill performance usually lies somewhere between 130 and 160 mm of travel.
On mine I got the Topeak front and SKS rear mud guards, an Axiom rear rack, front and rear lights. They didn’t have a headlamp with the lumens I wanted, so Tommy the owner went ahead and ordered one for me! He was always available for any question I may have had through his mobile phone, and updated me with pictures showing me different possible setups to see if I would like it.
It’s always good news to hear a gasoline carmaker is continuing its electric mobility adventure, and what better way to do this than to stray from low-hanging fruits such as SUVs and pickup trucks. GM is no stranger to bold moves and we hope it will continue with the same determination to bring us more Volts, Bolts, and why not electric folding Jolts? (No, Jolts is not my personal entry for the $10,000 prize.)
Our twelve-person test team not only tested the most exciting eMTBs of the 2018 season in the cold German winter, but also took them to the south of France for two weeks (we will spare you the mandatory muddy photos at this point). We climbed to the top of peaks, rummaged through deep mud, rode over countless roots and ruts on the way up and even more on the way back down, laughed, cursed, lived through many unforgettable moments, and took the bikes – and sometimes ourselves – to the limit.
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.
It’s not as far-fetched as it sounds. In Europe, where the e-bike market has exploded, the European Cycling Union announced that it will create a new racing circuit for e-bikes, including e-road and e-mountain bikes, for the 2019 season. Following suit, the UCI said it will include an electric mountain bike competition in the 2019 World Mountain Bike Championships. Yes, there will be a rainbow jersey awarded to the world’s best off-road e-biker.
eMTBs appeal to a very broad audience, so in practice, the same model is used in very different ways. A final rating according to school grades does not do justice to the individual character of the bikes and doesn’t provide a sufficient system of orientation for new buyers (which is exactly what we aim to do). For this reason, there is a separate article for each bike in the group test; in each article we detail the most important points, informing you comprehensively about the bike’s strengths and weaknesses and the ideal type of riding it is suited for. We also have five-star ratings, which provide condensed snippets of information about the character of the bike for a quick and easy overview.
Could Extend Battery Life; Monitor Battery Status. Powerful and HIGH SPEED Motor: 48V 500W high-speed brushless rear hub gear motor. It's faster and easier than a normal bike. Vtuvia has a professional electric bicycle experts and artistic designer team to develop electric mountain bike, electric city bike, fat Tyre electric bicycle and E bike conversion kit.
The original Power Plus model was one of the most popular in its class, introducing the joy and practicalities of e-bikes to a huge audience around the world. The CX1 builds on that success, adding a NEW more powerful brushless motor, a NEW upgraded battery, a 21-speed gear system, and improved reliability. The steel frame, strong brakes, suspension and quick-shift gears offer all the qualities of a premium mountain bike with the added feature of three pedal assist modes.
In a parallel hybrid motorized bicycle, such as the aforementioned 1897 invention by Hosea W. Libbey, human and motor inputs are mechanically coupled either in the bottom bracket, the rear wheel, or the front wheel, whereas in a (mechanical) series hybrid cycle, the human and motor inputs are coupled through differential gearing. In an (electronic) series hybrid cycle, human power is converted into electricity and is fed directly into the motor and mostly additional electricity is supplied from a battery.