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.[43]
James LaLonde, senior brand manager for Cannondale, agrees. He says their entry-level (read: good for beginners and more affordable) e-bike—the Quick Neo—has a battery life that lasts up to 70 miles. “If you ride for a full day, you may want to recharge it before you go to bed. But if you’re just commuting [a few miles], you could use it for a full week before you need to plug in. Then it’s a four-hour recharge when it’s completely dead.” (Of course, you don’t have to wait for it to get to zero if you want a shorter charge time.)
Commuting by bicycle, though laudable, can be hard work. So it makes sense to supplement your human pedal power with a little electrical help, especially if you have a hilly route to the office or no desire to arrive to a meeting in any kind of a sweat. This is where the ever-growing market of electric bikes comes in. Fortunately, gone are the days of the hugely expensive, unreliable first versions, which were never taken seriously anyway. Now the choice is vast, the prices are reasonable (on the whole) and performance and range has in general been greatly increased. Here, we takes a look at six of the best e-bikes available right now, each being the ideal option for a specific kind of commute. You may also be interested in our guide to the best folding bikes.

And then add in all of the other e-bike parts including motors, batteries, throttles, speed controllers, etc. All of these parts are mass-produced in China. They simply aren’t available in the US and no one is designing them or manufacturing them. The US would likely have to start by reverse engineering the Chinese products and learning how they produce them. How’s that for irony?


Proud to assemble the first Stromer ST5 in the US for a very special customer! @vancityreynolds #Repost @stromerbike with @get_repost ・・・ Ryan Reynolds is since 5 years a happy user of Stromer. Today we delivered him the new ST5 personally. #stromer #ryanreynolds #commute #happy #st5 #electricbikes #ebike #car #futuremobility #cycling #thoemus #amazing 22.07.2018 - 22:06
Electric Bikes Are Now Legal on Pennsylvania Roadways! Breaking News... According to the Bicycle Access Council of PA in their November 2014 News and Digest, Electric-Assist bicycles are now legal on Pennsylvania roadways as part of Act 154. "Electric-Assist bicycles are now legal on Pennsylvania roadways as part of Act 154. In a convoluted way since first introduced in 2010, a last minute amendment was introduced by Representative Kevin Schreiber (D-95) with...
We ran the C330 almost entirely in its speediest Turbo setting, switching back to Eco or Tour in heavy traffic for a more predictable assistance weaving between cars. Crucially, the display also displays how much assistance you’re getting as well as your speed, trip distance, etc. We used this to ease-back effort and stay in a light power sweet-spot, arriving at WIRED’s HQ without breaking a sweat.
The Benno e-Joy promises to be as fun to play with as it is to look at. Benno says it took inspiration from the timeless style of vintage Italian scooters and classic German cars. Add in the functionality of front and rear cargo racks and the 250w pedal-assist motor and you have a beautiful bike that's ready for anything. Cruise into town for groceries, wander comfortably along a gravel path on 2.35-inch balloon tires, or add the child seat attachment and take your kid along for the ride, and beach-goers will appreciate the surfboard rack. Whatever your cycling pleasure pursuit may be, the e-Joy can be your ticket to fun.
    Electric bikes and E-bike kits (bikes with electric conversion kits) are part of a wide range of Light Electric Vehicles (LEVs) that provide convenient local transportation. Generally designed for one person and small cargo capacity, electric bike range, speed, and cost are moderate. For most of us, the majority of our trips are less than 20 miles - within the range of most e-bikes considering the latest advances in affordable lithium batteries. Clean, quiet, and efficient LEVs offer the advantages of an extra car without the burdens.

Although ebikes are easier to use in some instances, such as climbing hills, there are safety concerns. Because the bikes are heavier than traditional bikes, balance can be a problem. And, of course, ebikes allow people to cycle at higher speeds than usual. “A normal rider will average between 12 to 15 mph, where an ebike rider will average between 15 to 20 mph,” Abadie says. An increase in the number of deaths of elderly male ebike riders in the Netherlands has been attributed to their overconfidence in being able to ride at high speeds and to mount and dismount the bikes.
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.
EcoBike offers a state of the art battery and frame design, and artfully combines the highest quality parts from the most competitive manufacturers – Shimano, SRAM, and Cionlli, to name a few. The result is a masterpiece in convenience, reliability, and style. Combining style with functionality, EcoBike is a world-renowned designer of quality electric bicycles, sold all over Europe and North America.
The body is made from light and durable aluminum. The handlebar comes with simple controls to let you accelerate, brake, monitor battery life, operate headlights and of course…sound the horn. There’s even an USB point that will let you charge your iPhone or Android on the go. The bike can reach a top speed of 10mph. Feel the wind in your hair as you zoom up and down hills and past all that city traffic…
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...

E-bikes allow more people to ride more. We know e-bike users who now get to ride with faster friends and don't have to worry about keeping up, or who live in a hilly area, or who've gifted one to their parents so they can ride a charity ride together at the same pace. And of course, commuters who no longer need to use their cars every day, as well as beginners who want to build their fitness. "The e-bike offers more confidence. You can go further, and it’s easier to go over hills than on a pedal bike,” Lalonde adds.
Another independent e-bike dealership, Adam Solar Rides in Pittsburgh, Pennsylvania, is also feeling the crunch. With essentially zero low-cost electric bicycle manufacturers in the US, Adam Solar Rides imports their entire lineup of electric bicycles from abroad, mostly from China. Like many small businesses owners, they are left with questions about how exactly the unclear tariffs might affect them and other e-bike dealers.

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“First, Taiwan and China have been building almost all the bikes for the entire world for the past 30-40 years. They have ecosystems and two generations of tradesmen that result in the best bikes in the world. Look at all the top brands—Giant, Specialized, Cannondale— they all make their top end bikes in China and Taiwan. Even look at the Italian brands and you’ll see they build their frames in China and Taiwan and paint them in Italy.”
E-bikes can be a useful part of cardiac rehabilitation programmes, since health professionals will often recommend a stationary bike be used in the early stages of these. Exercise-based cardiac rehabilitation programmes can reduce deaths in people with coronary heart disease by around 27%;[55] and a patient may feel safer progressing from stationary bikes to e-bikes.[56] They require less cardiac exertion for those who have experienced heart problems.[57]
In the geared motor, a small and lightweight motor spins very fast inside. The electric bike motor then uses a planetary reduction gear inside the motor to reduce the rpm to the correct speed for a bike wheel. Electric Bike Motor An electric bike motor on an electric bike can be any kind of electric motor. There have been some very creative home brew e bikes that used any motor...
In the geared motor, a small and lightweight motor spins very fast inside. The electric bike motor then uses a planetary reduction gear inside the motor to reduce the rpm to the correct speed for a bike wheel. Electric Bike Motor An electric bike motor on an electric bike can be any kind of electric motor. There have been some very creative home brew e bikes that used any motor...
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Motor: We have a blog post showing some motor differences: https://www.ebikekit.com/blogs/news/its-whats-inside-your-motor-that-counts Cabling is probably the #1 issue when something goes wrong. Good connectors, good cables, and good assembly (bike shop!) are crucial Strain reliefs on all cable joints! Where you have a junction box or a connector, the stress is concentrated over a small area near this stiff spot on the cable. This can cause small breaks on the internal...
The Espin is powered by a 350-watt motor that’s rated for trips up to 50 miles (depending on the terrain and assist level). Once depleted, the battery fully charges in roughly five hours. Thankfully, Espin makes it easy to remove the battery, allowing you to quickly recharge it at home or in the office between trips. A backlit LCD control hub displays your basic metrics and battery life while in transit and LED headlights add a touch of light when needed.
You should be extra aware about your local regulations as in many countries an L1e-A certified bike needs to be registered and insured (be sure to consult your local laws and rules) and with registration comes the security that the bike can be tracked if it is stolen or misplaced. This approval that we have received is European Union wide and even those countries that are not part of the EU but rather EEA do adopt similar regulations in order to keep the market common but you will need to consult with your authorities. We will detail more about the registration process in an upcoming blog post but if you have any questions you can email us and we will respond in kind.

Another type of electric assist motor, often referred to as the mid-drive system, is increasing in popularity. With this system, the electric motor is not built into the wheel but is usually mounted near (often under) the bottom bracket shell. In more typical configurations, a cog or wheel on the motor drives a belt or chain that engages with a pulley or sprocket fixed to one of the arms of the bicycle's crankset. Thus the propulsion is provided at the pedals rather than at the wheel, being eventually applied to the wheel via the bicycle's standard drive train.
The way they work is pretty simple: The motor kicks in with extra assist when you pedal, and there are different levels of assistance. That's it. Just turn it on, pedal, and go! You can also turn the assist mode off and ride it like a regular bike. And e-bikes stop assisting at a certain speed (in the U.S., it's 20 mph or 28 mph depending on class) for safety, of course.
But this bike isn’t just about the accessories. The powerful 48V 13Ah battery will allow you to pedal for longer, with some riders getting over 100 miles from one charge. The bike can be ridden as pedal-assist or throttle only and it’s equipped with full suspension and puncture-free Kenda tires. It folds up neatly to fit into the boot of a car or for commuting, though at 57 pounds, it’s heavy to cart around. A great value-for-money commuting bike with lots of features.
As electric bike options continue to expand, more brands are integrating the battery more seamlessly. That makes them look sleeker (and more like a real bike). Batteries are expensive, so make sure there's a good way lock the battery to your bike if you'll be keeping it outside. Overall weight is important. Some battery and motors can add 15 pounds or more to the bike. With assist, you won't feel that much when you're riding, but you will if you have to carry your bike up stairs or lift it onto a bike rack.
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