I found that by sticking it on 'Turbo' or 'Sport' mode (the upper 2 of the 4 electrical assistance levels) and leaving it in a middle gear, the Centros felt zippy when in full flight, but able to pull away from the lights with no problems. Less lazy riders than me might want to actually use the 10 gears, and will find that in the top gear, it's quite easy to push past the mandated 15.5mph electrical limit.
1. Eligibility: Sweepstakes (the "Sweepstakes") is open only to those who sign up at the online sweepstakes page and who are at least 18+ years old at the time of entry. The sweepstakes is open to the legal residents of the Contiguous USA and Canada and is void where prohibited by law. Employees of Electric Bike Technologies INC. (the "Sponsor") their respective affiliates, subsidiaries, advertising and promotion agencies, suppliers and their immediate family members and/or those living in the same household of each are not eligible to participate in the Sweepstakes. The Sweepstakes is subject to all applicable federal, state and local laws and regulations. Void where prohibited.
But the good times of the stealthy ebike existence will not endure forever. The ebike market is growing steadily and more so, technology is driving performance up and costs down. The market for a green, lifestyle friendly, transportation technology, with GPS, theft ID, cell service and probably skim lattes is alive and driving an emerging market. It is a matter of time before we all must face and respond to the legal demands of the state and local laws. Not to be over obligatory about being legal and duty oriented, but I do call on my fellow ebikers to ride legal, whether ebike, moped or other. Go ahead and build the 1200W ebike of your dreams, but get it insured and licensed if you must. Such compliance will set the precedence for public acceptance of ebikes in general, and build a track record for expansion and mainstreaming of moped-speed ebikes for commuter value driven needs of the future.

The word bicycle first appeared in English print in The Daily News in 1868, to describe "Bysicles and trysicles" on the "Champs Elysées and Bois de Boulogne".[11] The word was first used in 1847 in a French publication to describe an unidentified two-wheeled vehicle, possibly a carriage.[11] The design of the bicycle was an advance on the velocipede, although the words were used with some degree of overlap for a time.[11][12]


Seth Miller said he founded the company after his first electric bike was stolen from where it was parked in front of the midtown office building where he worked. The company that manufactured the bike had disbanded, so he started researching different suppliers. He soon discovered that a majority of the e-bikes sold in the US are just cobbled together from a variety of off-the-shelf Chinese-made parts found in a catalog. It sounded simple, so Miller figured he’d try it himself.
eBikes are a key part of solution to reduce carbon emissions globally. The Zero-emission part of the eBike discussion is based on re-charging the battery on a daily basis from a Sustainable Electrical Source such as solar, wind, hydro, geo thermal, etc.  The fact is today part of the eBike Battery charge is coming from Power Plants that are running …
In addition, we have a new lineup of torque sensors from NCTE to replace the long out-of-stock THUN devices. This restores the option for a true transducer that measures the actual spindle torsion. They provide an accurate human watts readout, and unlike other sensors they can be used in mid-drive setups where the motor is driving the right side chain.
This Class 3 (28 mph), utilitarian, road e-bike is smooth and torquey thanks to its Bosch Performance Speed motor. With a drop bar and traditional road-bike position and handling, the CrossRip+ is more suited to longer rides on mixed terrain than navigating congested city streets. It comes with a rear rack—for mounting bags, not for attaching cargo directly—full fenders, a kickstand, and integrated front and rear lights (which are powered by a Bosch 500Wh battery). It features a SRAM Force 1x11 drivetrain, hydraulic disc brakes, and wide 700x38mm tires.
Today I’m looking at the Rattan Challenger 350W ebike. It can be found for under $680 at Amazon (after Electrek coupon code 5AIDO2GB) shipped and includes free assembly at a local bike shop. I assembled mine at home however in about 15 minutes with the graciously supplied in box hex tool and wrenches. It is pretty straight forward – the hardest part was bolting the front light on.
My homeowners (State Farm) covers bikes , but assumes $500 per bike. They will add the bikes as personal property, but the premium is excessive (about $300/year per bike, and we have four bikes). I did increase our personal umbrella liability coverage, and it covers us if family members any sort of accident on our e-bikes that injures us or others or others' property, though only covers $500 each for our own bikes (under the homeowners coverage). It was not very expensive to increase the umbrella policy (as it resulted also in a reduced rate on our car insurance).
Übrige "Motorfahrräder": “E-Bikes mit einer Leistung zwischen 500 und 1000 Watt oder einer bauartbedingten Höchstgeschwindigkeit von 20 bis 30 km/h oder einer Tretunterstützung, die auch bei einem Tempo von 25 – 45 km/h wirkt, gelten als Motorfahrräder und benötigen ein entsprechendes Kontrollschild.”. You can use any bicyle path and also hiking roads forbidden to motorbikes if you drive slowly.

Artwork: Hub motors aren't the only way to power electric bicycle wheels. If you've ever watched a mouse scampering around inside an exercise wheel, you might have wondered if you could drive a wheel electrically, in a similar way, with something that pushes against the inside of the rim. A company called GeoOrbital has been developing an ingenious mechanical equivalent that can be used to power conventional bikes—and here's a simplified illustration of how it works. It has a motorized drive roller (red) that presses against the inner rim, powered by a battery pack (orange) that sits snugly inside the wheel. Two guide rollers (blue) mounted on a tensioned framework (green) take the place of the conventional arrangement of spokes. According to GeoOrbital, you can fit one of its wheels to a normal bike in just 60 seconds.
While falling gas prices have temporarily halted years of gains in the number of bicycle commuters, more and more of us are using the bicycle to get around. It’s economical, provides good exercise, and is much cheaper than owning a car. But unless you’re in really good shape, you aren’t going to get very far. Enter the electric bike: a glorious new contraption allows us to get around without having to worry about arriving at our destinations a sweaty mess. 

This page and all motor documentation pages are created and maintained by Lunacycle Support for purposes of referrals, references and education, and are the culmination of many years involvement in the ebike scene. While we would love if you bought from us there are a lot of good companies in the documentation and we hope it helps you to make the most informed choices for your build.

The oldest patent for an electric bike I've been able to find at the US Patent and Trademark Office is this one, by Ogden Bolton, Jr. of Canton Ohio, which was filed in September 1895 and granted three months later. You can see from these original diagrams that it bears an amazingly close resemblance to modern electric bikes. In the general picture on the left, you can see there's a hub motor on the rear wheel (blue), a battery suspended from the frame (red), and a simple handlebar control to make the thing stop and go. In the more detailed cutaway of the hub motor on the right, you can see there's a six-pole magnet in the center (orange) bolted to the frame and an armature (made from coiled wire, yellow) that rotates around it when the current is switched on. It's quite a hefty motor even by modern standards; Ogdon mentions "a heavy current at low voltage—for instance, to carry one hundred amperes at ten volts." So that's 1000 watts, which is about twice the power of a typical modern bike hub motor.


Step-throughs were popular partly for practical reasons and partly for social mores of the day. For most of the history of bicycles' popularity women have worn long skirts, and the lower frame accommodated these better than the top-tube. Furthermore, it was considered "unladylike" for women to open their legs to mount and dismount—in more conservative times women who rode bicycles at all were vilified as immoral or immodest. These practices were akin to the older practice of riding horse sidesaddle.[citation needed]
As of May 19, 2009, Nevada amended its state transportation laws to explicitly permit electric bicycles to use any "trail or pedestrian walkway" intended for use with bicycles and constructed with federal funding, and otherwise generally permits electric bicycles to be operated in cases where a regular bicycle could be. An electric bicycle is defined as a two- or three-wheeled vehicle with fully operable pedals with an electric motor producing up to 1 gross brake horsepower and up to 750 watts final output, and with a maximum speed of up to 20 miles per hour on flat ground with a 170-pound rider when powered only by that engine.[106]
Many newer or smaller companies only design and market their products; the actual production is done by Asian companies. For example, some 60% of the world's bicycles are now being made in China. Despite this shift in production, as nations such as China and India become more wealthy, their own use of bicycles has declined due to the increasing affordability of cars and motorcycles.[102] One of the major reasons for the proliferation of Chinese-made bicycles in foreign markets is the lower cost of labor in China.[103]
However, Emu sells a little foldable number if that's your bag. The Emu Crossbar is for  town commuters that require a sweet ride that's backed up by solid Shimano Nexus hub gears and Tektro brakes, which are adequate if not the best on the market. Riding is smooth and easy, with the crank moving sensor doing its best to iron out any gaps in power delivery.
The Consumer Product Safety Commission(CPSC) stipulates that commercially manufactured low-speed electric bicycles, or tricycles, must have fully operable pedals, an electric motor not exceeding 750W of power and a top motor-powered speed not in excess of 20 miles per hour (32 km/h).[22] An electric bike remaining within these specifications will be regarded simply as a bicycle for purposes of safety standards. This supersedes any state law that is more stringent, but only regarding safety equipment required on electric bicycles and the standard of manufacture they must meet.[23]. The legislation enacting this amendment to the CPSC is also known as HR 727[24].
A KS LEV Integra dropper post, 130mm of front and rear travel, 27.5-inch wheels, and trail-grabbing 2.8-inch tires make this pedal-assist mountain bike a great option if you want to climb farther to shred longer, but don’t want to lug your bike uphill for ages. The 250-watt motor, placed slightly farther forward than most other bikes to optimize weight distribution and handling, provides a nice boost so you can enjoy the ride up and not be too gassed when you get to the top.
Written by Gaston Daigle. Gaston is an admin and key contributor at the popular Endless Sphere Technology Forum Batteries and battery packs, the lifeblood of your electric bicycle Plug and play?... not always that easy and certainly not very simple for most of us.. or is it? A good Lithium battery pack can cost as much, and often even more than the rest of your electric bike kit. Picking the right pack for the job is very important. Below, you will find information to get you on the right path to ebike happiness!.. Read-on! Back in the late 90's when I...
My homeowners (State Farm) covers bikes , but assumes $500 per bike. They will add the bikes as personal property, but the premium is excessive (about $300/year per bike, and we have four bikes). I did increase our personal umbrella liability coverage, and it covers us if family members any sort of accident on our e-bikes that injures us or others or others' property, though only covers $500 each for our own bikes (under the homeowners coverage). It was not very expensive to increase the umbrella policy (as it resulted also in a reduced rate on our car insurance).
The other motor is the G311, a front equivalent to the wonderfully silent G310 rear motors we introduced late last year. This motor will be replacing the G01 hub for our front mini geared kits. It's a tad lighter (2.3kg), much quieter (spiral gears!), but still has the features from the G01 that we loved. That means a side cable exit, ISO disk rotor compatibility, and 10mm round axle.

Experiments done in Uganda, Tanzania, and Sri Lanka on hundreds of households have shown that a bicycle can increase a poor family's income as much as 35%.[69][better source needed][70][71] Transport, if analyzed for the cost-benefit analysis for rural poverty alleviation, has given one of the best returns in this regard. For example, road investments in India were a staggering 3–10 times more effective than almost all other investments and subsidies in rural economy in the decade of the 1990s. What a road does at a macro level to increase transport, the bicycle supports at the micro level. The bicycle, in that sense, can be an important poverty-eradication tool in poor nations.
To be honest, this bike is really designed for city commuters or kids riding around the suburbs. The fact that it’s foldable will let you carry it on the bus, on the train or even on the plane. It’s just not designed for heavy riding, long distances or tough terrains. If you want something sleek and fabulous at a fraction of the cost of most other e-bikes, this baby’s for you.

Electric bicycles have two main methods of operation: pedal-assist and/or throttle-control. As the name implies, pedal-assist “assists” your pedaling and requires some input. With this method, a torque sensor picks up movement or stress to determine the power requirements of the rider. Everything is automated so there’s nothing to think about, just jump on and start riding. Some bikes have multiple settings, while others have just one setting with the addition of a throttle control. Depending on the setting, pedal-assistance can help a little – or a lot. At lower settings, pedal-assist is barely noticeable but helps extend your range. At higher settings, the power is quite obvious and feels like a strong wind at your back with the motor doing most of the work while you pedal along.


As of May 19, 2009, Nevada amended its state transportation laws to explicitly permit electric bicycles to use any "trail or pedestrian walkway" intended for use with bicycles and constructed with federal funding, and otherwise generally permits electric bicycles to be operated in cases where a regular bicycle could be. An electric bicycle is defined as a two- or three-wheeled vehicle with fully operable pedals with an electric motor producing up to 1 gross brake horsepower and up to 750 watts final output, and with a maximum speed of up to 20 miles per hour on flat ground with a 170-pound rider when powered only by that engine.[106]
In Manitoba Electric Bikes can be classified as a scooter or a moped/mobility vehicle depending on the power of the engine used and its top speed. If the engine on the Electric Bike is less than 50cc and it cannot exceed 50 km per hour the rider is not required to have a motorcycle licence or any specific training.[26] Electric Bikes can be driven by anyone with a Class 5 driver's licence in any stage of the graduated licensing process.[27] A Class 5 Learners Licence requires one to be age 16 (parents consent if under 18) and a visit to a licensing office to pass a vision test and a written knowledge test about the rules of the road and traffic signs.[28]
Pedelecs are much like conventional bicycles in use and function — the electric motor only provides assistance, for example, when the rider is climbing or struggling against a headwind. Pedelecs are therefore especially useful for people in hilly areas where riding a bike would prove too strenuous for many to consider taking up cycling as a daily means of transport. They are also useful for riders who more generally need some assistance, e.g. for people with heart, leg muscle or knee joint issues.
These are, unfortunately, small steps forward, however, as the majority of city streets in America aren’t bike-friendly, and new legislation is rarely enforced. Then, if you take a look at the fitness (or lack thereof) of the average American, a connection begins to develop. This connection becomes even stronger when you compare the biking system here with that of a country like Norway, which has devoted hundreds of millions of dollars to its biking infrastructure, building highways dedicated to the mode of transportation. As a result, Norway is one of the most physically active countries in the world, significantly lowering their incidences of heart disease and obesity.
The benefits don’t stop at the physical, however. Our daily lives are spent glued to computer and phone screens, and even if you choose to accept that as an inevitable wave of the future, your mind still needs a release from all that toxic screen time. Because a bike moves more slowly than a car, while also giving you much better sight lines and more direct exposure to the sun, a nice ride — even through city streets — will put you more in touch with nature. Getting in touch with your natural environment can drastically reduce stress levels, which is why biking to and from work is such a good idea: no matter how frustrating your day at the office was, you can let it all go on the enjoyable cycling trip home.
On October 22, 2014 PA house bill 573 passed into law, which is Act 154, which changes the definition of "pedalcycle" (bicycle) in the PA state vehicle code. "Pedalcycle" is now defined as a vehicle propelled solely by human-powered pedals or a "pedalcycle" (bicycle) with electric assist( a vehicle weighing not more than 100 pounds with two or three wheels more than 11 inches in diameter, manufactured or assembled with an electric motor rated no more than 750 watts and equipped with operational pedals and travels at speeds less than 20 mph). This bill allows the usage of pedal assisted bicycles in PA that follow the adopted state guidelines.
I bought this bike from a dealer after extensive research on ebikes. The Elby is on par with European commuter ebikes at a better price point, you get a lot for your $ here. Elby is the complete package commuter: lights & a USB charger (for a phone or whatever) are integrated into the motor’s power supply and wired inside the frame. Rugged fenders have heavy-duty cross braces to attach baskets and whatnot. Thick Continental tires make for a comfy ride. The step-through frame is very convenient, built stout enough to carry me (200#) and two loaded baskets down hills and around curves with perfect stability. The motor on this bike is in the rear hub, and having it behind me makes it virtually soundless. The motor (BionX 500 watt) kicks in as soon as you start pedaling, but there is a
Flyer Vollblut. A new rear motor bike from one of the most reliable E-bike makers. This model doesn't look as "heavy" as most other Flyer models. The Vollblut 500 has the 500W new Panasonic rear motor, front fork suspension, 28 inch wheels. It is in the same price range as the Stöckli and the Stromer. Flyer is known for top service and reliability, but it's a new model with a new motor ....
7. Winner selection and notification: Winners of the Sweepstakes will be selected in a random drawing under the supervision of the Sponsor. Winners will be notified via e-mail to the e-mail address they entered the Sweepstakes with within five (5) days following the winner selection. Electric Bike Technologies INC. shall have no liability for a winner's failure to receive notices due to winners' spam, junk e-mail or other security settings or for winners' provision of incorrect or otherwise non-functioning contact information. If the selected winner cannot be contacted, is ineligible, fails to claim the prize within 15 days from the time award notification was sent, or fails to timely return a completed and executed declaration and releases as required, prize may be forfeited and an alternate winner selected. The receipt by winner of the prize offered in this Sweepstakes is conditioned upon compliance with any and all federal and state laws and regulations. ANY VIOLATION OF THESE OFFICIAL RULES BY ANY WINNER (AT SPONSOR'S SOLE DISCRETION) WILL RESULT IN SUCH WINNER'S DISQUALIFICATION AS WINNER OF THE SWEEPSTAKES AND ALL PRIVILEGES AS WINNER WILL BE IMMEDIATELY TERMINATED.
"Moped" means a device upon which a person may ride which has two or three wheels in contact with the ground, a motor having a maximum power output capability measured at the motor output shaft, in accordance with the Society of Automotive Engineers standards, of two horsepower (one thousand four hundred ninety -two watts) or less and, if it is a combustion engine, a maximum piston or rotor displacement of 3.05 cubic inches (fifty cubic centimeters) and which will propel the moped, unassisted, on a level surface at a maximum speed no greater than thirty miles per hour; and a direct or automatic power drive system which requires no clutch or gear shift operation by the moped driver after the drive system is engaged with the power unit.
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