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]
Features:Non-toxic,non-odor that is safe using.Widely using for electric bikes, bicycles,mountain bikes and more.High efficient electric core.Large capacity design.Professional replacement battery.Metal safety protective safety lock,easy disassembly and installation of battery.Repetitive discharge test,anti-collision and wrestling.Descriptions:It so lightweight which is so portable to be taken.Novel appearance and stable output.The input is more stable and the service life is longer.Specifications:Size:380*90*87mmPackage Size:410*190*140mmColor:silver & blackVoltage:36V Battery Capacity:10AH Max constant discharger current:15AMax current:45ACharger:2ABattery Type:Lithium batteryPackage included:1x Replacement Battery1x Battery holder1x Power Su.
One of the biggest misconceptions about e-bikes is that you're not actually doing any work when you ride one. Not true. Thanks to that battery-powered motor, E-bikes are heavy! So if you turn the assist mode to low or off, you're still putting in plenty of effort. Many commuters have found that traveling home from work with assist off (when they're not in as big of a rush and don't mind getting sweaty) is a great way to fit exercise into a busy schedule.
“Yamaha’s power assist motors provide the purest, most natural assist feel thanks in part to Yamaha’s Triple Sensor System that has been exclusively optimized for Yamaha’s U.S. power assist bikes. Through the Triple Sensor System, thousands of times per second, frictionless sensors measure the rider’s pedal-torque, bicycle speed, and crank arm cadence with tremendous precision.”
The riding position is racy, and we suffered a numb left hand after 45 minutes of riding due to a combination of the Bullhorn bars and the narrow position adopted to cover the ‘sissy’ brakes in traffic (picking a flat bar model would be more practical for city commuting). The biggest drawback to the Soho is that on a single-speed the 15.5mph cut-off (for all e-bike motors in Europe) left us feeling like we’d been "deserted". Over the cut-off speed we found ourselves dragging that heavy back wheel with no alternate gears to reach for.
Yes, there are less expensive ebikes on the market but most come with a few serious caveats. The Espin Sport delivers on the full promise of an electric bike, but in a more affordable fashion. This bike isn’t going to tow you around for a 60-mile round-trip endeavor but those seeking their first ebike will get plenty of return on their investment with this model.

The motor on the Patriot DreamE drives the chain and utilizes the gearing of the bike for remarkable power and speed. If you want more speed or hill climbing power, simply change the rear cassette. The motor is lightweight and mounted low on the frame for better balance. Unlike hub motors, this frame mounted motor allows you to remove wheels (e.g. to fix a flat) like a traditional bicycle - without any wires to disconnect and reconnect.
Both land management regulators and mountain bike trail access advocates have argued for bans of electric bicycles on outdoor trails that are accessible to mountain bikes, citing potential safety hazards as well as the potential for electric bikes to damage trails. A study conducted by the International Mountain Bicycling Association, however, found that the physical impacts of low-powered pedal-assist electric mountain bikes may be similar to traditional mountain bikes.[68]
The riding position is racy, and we suffered a numb left hand after 45 minutes of riding due to a combination of the Bullhorn bars and the narrow position adopted to cover the ‘sissy’ brakes in traffic (picking a flat bar model would be more practical for city commuting). The biggest drawback to the Soho is that on a single-speed the 15.5mph cut-off (for all e-bike motors in Europe) left us feeling like we’d been "deserted". Over the cut-off speed we found ourselves dragging that heavy back wheel with no alternate gears to reach for.
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.[36][37] Some manufacturers, such as the Canadian BionX or American Vintage Electric Bikes,[38] have the option of using regenerative braking, the motor acts as a generator to slow the bike down prior to the brake pads engaging.[39] 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.[40] 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[41] created 18650 battery packs[42] are commonly used among Do-it-yourself ebike makers.

Known for not only their powerful line of mountain bikes and specialty bikes—cruisers to fat—Bulls also has a versatile line of urban models. The Cross E Wave comes as one of their more affordable options at roughly $2,800, but at 20 mph can still range for up to 134 in optimal conditions with everything you’d expect (fenders, lock, lights and adjustability). The entire family of Bulls e-bikes has specifications built for any scenario.
The high quality Drive Units from Bosch eBike Systems are the power behind your eBike – and are designed to be both functional and attractive. The gearing layout ensures optimal integration of the Drive Unit design and increased ground clearance. Light and compact: The reduced volume achieves reduced weight and a small distance between pedals, enhancing the ergonomics of your pedelec. The eBike Systems ActiveLine and Active Line Plus both received the Red Dot Award 2017 for product design.
You know the saying, “What you see is what you get?” That’s pretty much the case here: An e-bike or "pedal-assist" bike is a pedal bike with an integrated electric motor that adds power when you pedal. It's not like a motorcycle, moped, or motorbike, because it doesn't have a throttle or engine. Think of it like when you get the rocket boost in Mario Kart (except it lasts for more than three seconds).
Featuring Bosch’s newest CX Drive motor, the Trekking has enormous torque (that equals acceleration) compared with the rest of the bikes on test. From a standing start the Haibike reaches the 15.5mph European speed limit in seconds. Pair this with mid-sized 27.5in wheels and laid-back mountain-bike geometry, and you have a grin-inducing almost motorbike-like riding experience. This is accentuated off-road, where a rider’s lower average speed is under the motor cut-off point for more of the time, so suddenly the hefty Trekking makes complete sense.

{"id":1475552477250,"title":"SONDORS Fold Z (NOVEMBER SHIPPING)","handle":"sondors-fold-z-shipping-nov18","description":"","published_at":"2018-01-22T06:00:00-08:00","created_at":"2018-07-27T11:25:47-07:00","vendor":"SONDORS Electric Bikes","type":"Electric Bike","tags":["Battery","bike","folding bike","gear","ion","lithium","motor","shimano","sondors","SONDORS Fold","sondors folding bike","tire"],"price":84900,"price_min":84900,"price_max":84900,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":12819685474370,"title":"Flame","option1":"Flame","option2":null,"option3":null,"sku":"183","requires_shipping":true,"taxable":true,"featured_image":{"id":3973527928898,"product_id":1475552477250,"position":2,"created_at":"2018-08-02T12:43:13-07:00","updated_at":"2018-08-06T05:24:32-07:00","alt":"SONDORS Fold Z (NOVEMBER SHIPPING) - SONDORS Electric Bikes","width":1024,"height":660,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/1439\/6088\/products\/Fold_Z_Flame.jpg?v=1533558272","variant_ids":[12819685474370]},"available":true,"name":"SONDORS Fold Z (NOVEMBER SHIPPING) - Flame","public_title":"Flame","options":["Flame"],"price":84900,"weight":136078,"compare_at_price":null,"inventory_quantity":9,"inventory_management":"shopify","inventory_policy":"deny","barcode":""},{"id":12819685507138,"title":"Black","option1":"Black","option2":null,"option3":null,"sku":"180","requires_shipping":true,"taxable":true,"featured_image":{"id":3973527961666,"product_id":1475552477250,"position":3,"created_at":"2018-08-02T12:43:14-07:00","updated_at":"2018-08-06T05:24:32-07:00","alt":"SONDORS Fold Z (NOVEMBER SHIPPING) - SONDORS Electric Bikes","width":1024,"height":660,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/1439\/6088\/products\/Fold_Z_Black.jpg?v=1533558272","variant_ids":[12819685507138]},"available":true,"name":"SONDORS Fold Z (NOVEMBER SHIPPING) - Black","public_title":"Black","options":["Black"],"price":84900,"weight":136078,"compare_at_price":null,"inventory_quantity":5,"inventory_management":"shopify","inventory_policy":"deny","barcode":""},{"id":12819685539906,"title":"Pistol","option1":"Pistol","option2":null,"option3":null,"sku":"181","requires_shipping":true,"taxable":true,"featured_image":{"id":3973527896130,"product_id":1475552477250,"position":1,"created_at":"2018-08-02T12:43:12-07:00","updated_at":"2018-08-06T05:24:32-07:00","alt":"SONDORS Fold Z (NOVEMBER SHIPPING) - SONDORS Electric Bikes","width":1024,"height":660,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/1439\/6088\/products\/Fold_Z_Pistol.jpg?v=1533558272","variant_ids":[12819685539906]},"available":true,"name":"SONDORS Fold Z (NOVEMBER SHIPPING) - Pistol","public_title":"Pistol","options":["Pistol"],"price":84900,"weight":136078,"compare_at_price":null,"inventory_quantity":10,"inventory_management":"shopify","inventory_policy":"deny","barcode":""}],"images":["\/\/cdn.shopify.com\/s\/files\/1\/1439\/6088\/products\/Fold_Z_Pistol.jpg?v=1533558272","\/\/cdn.shopify.com\/s\/files\/1\/1439\/6088\/products\/Fold_Z_Flame.jpg?v=1533558272","\/\/cdn.shopify.com\/s\/files\/1\/1439\/6088\/products\/Fold_Z_Black.jpg?v=1533558272"],"featured_image":"\/\/cdn.shopify.com\/s\/files\/1\/1439\/6088\/products\/Fold_Z_Pistol.jpg?v=1533558272","options":["Color"],"content":""}
"Bargain Buys" Most electric bikes priced less than $600 at big box retailers and on-line are aimed at the kid/teen/toy market. They generally lack the performance and durability that people want and expect. Also, parts and service can be problematic with both big box retailers and on-line vendors. We urge you to invest in a quality e-bike, preferably from a local dealer, that will serve you (and others) for many years. Remember, if it's poorly constructed and you can't get repair parts, it will likely become land-fill material. Save, beg, or borrow the money to get a quality bike or kit.
BattleBots legend Christian Carlberg and his company C2 Robotics are using Electric Bike Technologies direct drive hub motors to power 'OverDrive', their latest BattleBot on ABC!   Team C2 Robotics is set to battle again tonight at 9pm EST on ABC! For the past two decades Christian Carlberg and the C2 Robotics Team have been making remote control mobile platforms for commercial, military and the entertainment industries. With the advance of brushless...
Irvine, Calif. – As eBikes transform into a "lifestyle product," smart aesthetics and attractive design play an increasingly important role. That’s why Bosch eBike Systems is setting the pace: for Model Year 2018, presenting the PowerTube 500, a battery which can be integrated into the frame of the bicycle. The PowerTube 500 combines modern design with first class Bosch technology for eBikers who prefer a clean and timeless look.
By accessing any of Evike.com's services and products provided, you will have read, agreed, verified and acknowledged to all the conditions in Evike.com's Terms of Use and to all of our waivers and disclaimers below: You are at least 18 years of age. All goods sold on Evike.com are specifically for Airsoft gaming purposes only. All sale transactions are completed in the state of California under California law and regulations. All shipping are done via buyer selected/paid carriers in California. If there is any dispute about or involving Evike.com's services or products provided, you agree that the dispute shall be governed by the laws of the State of California, USA, without regard to conflict of law provisions and you agree to exclusive personal jurisdiction and venue in the state and federal courts of the United States located in the state of California, City of Alhambra. Buyer assumes full responsibility of all liabilities, damages, injuries, modifications done to products, buyer's local laws, buyer's local regulations, and ownership of Airsoft replicas. You will not hold Evike.com Inc., its owners, affiliates or employees responsible for any legal actions, liabilities, damages, penalties, claims, or other obligations caused by your ownership of Airsoft replicas. All Airsoft replicas are sold with a bright orange tip to comply with federal law and regulations. Evike.com Inc. will not be responsible for injuries and damages caused by improper usage, user errors, crazy stunts, lack of adult supervision, or willful ignorance to risk. Pricing, specification, availability and special promotions are subject to change without notice. Please visit our warranty and disclaimer pages for more information. All content is subject to change without prior notice. Designated trademarks and brands are the property of their respective owners. View Full Disclaimer.
This article first appeared in Electric Bike Report in June of 2013. Since then, we’ve made some changes to our motor selection - our Direct-Drive motors are now all High-Torque 6x9 wound, so they run slower (approximately 15mph at 36v or 20mph at 48v), and our Geared Motors have been replaced by a 500w version, (approximately 20mph at 36v or 28mph at 48v). The Direct-Drive is now our Heavy-Duty motor and the...
Electric Motor. Having a battery that will last long is just one piece of the puzzle. The electric motor should be powerful enough to move the bike on flat surfaces without any problems and to overcome some low-steep slopes. It will help you out on steeper slopes, it won’t let you down. If the motor or “the engine” is more powerful you’ll be able to accelerate faster and to reach a higher momentum. This will allow you to reach your destination faster and without you getting tired.

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.
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...
With its chunky, plus-sized tires, at first sight, the E3 Peak Plus seems like a cross between a hardtail mountain bike and a fat bike. It’s good looking: the mid-drive motor and removable, lightweight battery fit in nicely with the lines of the bike, making it look more like a standard mountain bike than other models. Unlike many mid-range e-bikes, it also comes in three sizes — handy if the usual one-size-fits-all approach doesn’t fit you.
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]
BattleBots legend Christian Carlberg and his company C2 Robotics are using Electric Bike Technologies direct drive hub motors to power 'OverDrive', their latest BattleBot on ABC!   Team C2 Robotics is set to battle again tonight at 9pm EST on ABC! For the past two decades Christian Carlberg and the C2 Robotics Team have been making remote control mobile platforms for commercial, military and the entertainment industries. With the advance of brushless...

Because the power is applied through the chain and sprocket, power is typically limited to around 250–500 watts to protect against fast wear on the drivetrain. An electric mid-drive combined with an internal gear hub at the back hub may require care due to the lack of a clutch mechanism to soften the shock to the gears at the moment of re-engagement. A continuously variable transmission or a fully automatic internal gear hub may reduce the shocks due to the viscosity of oils used for liquid coupling instead of the mechanical couplings of the conventional internal gear hubs.
Beach cruiser fans rejoice with the Raleigh Retroglide iE Step Thru. Cruise the boardwalk with maximum style and minimum effort as you enjoy the perks of a 350 watt motor and a top pedal-assisted speed of 20mph. Enjoy the comfort of an upright riding position thanks to the backswept handlebar and take advantage of the cargo-carrying capacity, thanks to the rear rack, to run errands around town or commute to work. With a claimed range of 35 miles, the Raleigh Retroglide is a great choice for anyone who wants to add a little speed to daily cruise.
×