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.
Mountain electric bikes can even be used for commuting to work or going to the grocery store. When choosing a mountain eBike, make sure that you pick one that has at least 500 to 750 watts of power. Having a powerful motor to assist you on the trail will keep your legs from being sore at the end of the day. This will ensure that you get the most out of your bike and be able to drive across rocks and logs with ease.
E-bikes remain a subject of controversy in mountain biking circles. You may not be able to take one on your favorite singletrack right now, as most non-motorized trails prohibit them. However, things have been tilting in a more permissive direction. Most recently, IMBA, the sport’s largest public advocacy group, shifted its stance to support allowing access for some pedal-assist e-bikes (those that top out at 20 mph) on some trails. With every major manufacturer making e-mountain bikes, more access is likely only a matter of time. “In a few years, people will realize that electric mountain bikes have no more trail impact than a regular mountain bike,” Benjamin says.
I have cerebral palsy and have used a powerchair since I was three.... About a year and a half ago I applied for a grant from the Challenged Athlete Foundation for a handcycle. While I was waiting for letters to go out I worked out at the gym. I was talking to my trainer about handcycles. I explained that because all of the weight was behind the drive wheel in...
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.
When all was said and done, the Commencal Meta Power Race 650B+ proved to have everyone's favorite e-bike controls. Commencal uses the Shimano Steps E8000 motor and system which features ergonomic thumb shifters, a small but easy to read digital display and a secure and straightforward charging connection. The ergonomic shifter of the Shimano system is better than the electronic buttons found on both the Specialized, HaiBike and Trek. The Commencal's best-in-the-test digital display also proved to be a favorite for its small size and out of the way mounting location, easy to read at-a-glance information, and color-coded support settings information. The HaiBike's Yamaha PW-X motor and system also featured a digital display, but testers thought it was a little too big, displayed too much information, was more challenging to read, and generally felt a little more clunky and less refined than the Shimano system. That Trek Powerfly's Bosch Purion shifter and display unit was easy to read and had a bright screen, but was in a less visible location on the left side of the handlebar. Our Editor's Choice Award winner, the Specialized Turbo Levo FSR Comp 6Fattie scored the lowest in this rating due to the lack of a handlebar mounted display and a less user-friendly charging connection.
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.
When did mountain biking get so uptight? As we see it, fun is a right, and no matter where or when you're riding, it should always be at the heart of each pedal stroke. So whether you're on singletrack, sand, or snow, the Fatboy will deliver a good time. It has tire clearance for up to five inches, a lightweight M4 aluminum frame, snappy handling, and rack mounts that make it adventure-ready, the question is, 'what's taken you so long?'
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
Bosch’s flagship mountain bike system uses a mini drive ring with internal gearing to send its power to the drivetrain. There’s some resistance in the system over 25km/h, but when you first press down on the pedals there’s an impressive surge of power, and it offers good support over a wide cadence range. Its size has an impact on the width of the cranks (the Q-factor) as well as the chainstay length of the frame, and it’s not the lightest system on the market at 4kg for the motor. On the other hand, Bosch is the most established player on the market, and its system has proven itself over many years.
The final appearance of both the FullSeven and the Yamaha PW-X on the countdown. This top notch 27.5″ wheeled shred sled is another perfect fire road rider for the intermediate rider looking to step their game up. One thing I didn’t mention before but I wanted to let you all know is that I think the FullSeven geometry this year allows the bikes to be more accessible to riders of all sizes. Traditionally, most companies offer one or two options for female riders. Haibike does offer the FullLife models, but the FullSeven series by and large offers better components and a very similar geometry. I think that’s great.
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.
Direct-to-consumer Italian brand Thok’s MIG bike has reviewers falling at its feet. Why? It simply offers a superb package – its geometry and construction are as on-the-ball as its choice of Shimano motor, battery placement – giving low centre of gravity – and quality build kit. At under £4k, the MIG is great value too (there is also a pricier MIG R, featuring upgraded components). Thok knows its stuff, which is hardly surprising when you look at its founder. Former champion downhill racer Stefano Migliorini understands what makes a good bike, and he personally leads the charge on bike development at Thok.
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.)
Update: Well I've had an opportunity to take the bike on some longer trips now 10 miles back and forth a few times, and the bike performed well, so I am raising my rating to 4 stars. I got a larger seat and raised the angle of the handle bars and it is more comfortable to ride than it was, but still a bit awkward for someone of my size. I've been leaving the bike charging all the time I'm not using it and this seemed to make a big difference with the indicator light not coming on as soon, and the biggest difference is made by me riding the bike the way it was meant to be ridden, ie: pedaling, I was treating it more like a scooter and just staying on the throttle before, but if you use it as a peddle assist bike, the way it's meant to be ridden it performs quite well. The bike is not great going up hills and you still have to work but it does make hills a lot easier. It is also frustrating not having more gears, you basically just leave the bike in 6 gear all the time, and peddle when you can ie: when your slow enough you can peddle. I have no problem with the weight of the bike and it is solid and well built and it will work for my purposes, fortunately the town I live in is only about 5 miles end to end so I don't need the bike to be able to go super long distances, and fortunately I don't mind peddling some, so I don't mind the bike being a peddle assist bike and not a more scooter type. One other gripe I do have is the bike does not have the standard holes to mount a back rack to, one of the main reasons I got this bike was to carry groceries and stuff more easily, so I'm disappointed that it will be difficult for me to mount a rack to, but I'm sure a front basket would work. Anyway, 4 stars, I like it, the price is great, it's well constructed, you will have a hard time finding an electric bike of this quality at this price, but it is not without a little sacrifice.
What could very well be the newest frontier of all-electric transportation, electric mountain bikes are by no means non-confrontational. On the contrary, they’re also hailed as great power assisted means to conquer those tough to nearly impossible trails you’ve been trying effortlessly to tackle. Which, after all, isn’t necessarily a bad thing. Unless, of course, you’re a die-hard analog fan who only believes those with true grit and dedication should be attempting the most impossible of backcountry trails.
China has experienced an explosive growth of sales of non-assisted e-bikes including scooter type, with annual sales jumping from 56,000 units in 1998 to over 21 million in 2008, and reaching an estimated fleet of 120 million e-bikes in early 2010. This boom was triggered by Chinese local governments' efforts to restrict motorcycles in city centers to avoid traffic disruption and accidents. By late 2009 motorcycles are banned or restricted in over ninety major Chinese cities. Users began replacing traditional bicycles and motorcycles and e-bike became an alternative to commuting by car. Nevertheless, road safety concerns continue as around 2,500 e-bike related deaths were registered in 2007. By late 2009 ten cities had also banned or imposed restrictions on e-bikes on the same grounds as motorcycles. Among these cities were Guangzhou, Shenzhen, Changsha, Foshan, Changzhou, and Dongguang.
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. 
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.
And let’s not forget the economic advantages of owning an e-bike. The annual cost of running a new family car is, on average, about $9,000 per year. Running an electric bike costs around $400 per year. And while filling a gas tank costs around $30, recharging an electric bike battery costs only about 50 cents. A tank of gas may get you further, but not 60 times further!
I'm looking to leverage the Cycle to Work Scheme and have been looking around for an e-bike to purchase. I used a lot of the information provided here and have come to the conclusion that the Kreiger from Woosh meets all my needs. 95% of the time the bike will be used to commute to and from work, the rest of the time I'll probably be rising it around the park with the kids. The thing I like about this bike is that it pretty much comes with everything (except the lock) that you'd need to get going. I guess, if I really wanted to, I could upgrade the Bafang motor on this to a BBS02 with a better battery.
Controllers for brushless motors: E-bikes require high initial torque and therefore models that use brushless motors typically have Hall sensor commutation for speed and angle measurement. An electronic controller provides assistance as a function of the sensor inputs, the vehicle speed and the required force. The controllers generally allow input by means of potentiometer or Hall Effect twist grip (or thumb-operated lever throttle), closed-loop speed control for precise speed regulation, protection logic for over-voltage, over-current and thermal protection. Bikes with a pedal assist function typically have a disc on the crank shaft featuring a ring of magnets coupled with a Hall sensor giving rise to a series of pulses, the frequency of which is proportional to pedaling speed. The controller uses pulse width modulation to regulate the power to the motor. Sometimes support is provided for regenerative braking but infrequent braking and the low mass of bicycles limits recovered energy. An implementation is described in an application note for a 200 W, 24 V Brushless DC (BLDC) motor.