Oregon Law (ORS 801.258]) defines an electric assisted bicycle as an electric motor-driven vehicle equipped with operable pedals, a seat or saddle for the rider, no more than three wheels in contact during travel. In addition, the vehicle must be equipped with an electric motor that is capable of applying a power output of no greater than 1,000 watts, and that is incapable of propelling the vehicle at a speed greater than 20 miles per hour on level ground.[124]
Stöckli E.T. Urban Confort, made in Switzerland. It has SwissGoDrive motors and Samsung batteries. There is a 500W/17.6Ah combo that seems to be ideal for commuters, i.e. it has a 50km range using full assistance. In the USA, a similar product is available as Currie eFlow e3 Nitro (different motor and electronics). This model doesn't have a front wheel suspension, but comes with "balloon" tires that somewhat absorb shocks. Options are available through types: "simple"/Urban/CROSS and man/confort models. E.g. the Cross model has a front suspension, a 500W motor and no equipment like lights, fenders, etc. However, paying extra, you can compose your own configuration. If you commute using bumpy roads, then get a front suspension.

(ii) a vehicle equipped with two or three wheels, foot pedals to permit muscular propulsion, and an independent power source providing a maximum of 2 brake horsepower. If a combustion engine is used, the maximum piston or rotor displacement may not exceed 3.05 cubic inches, 50 centimeters, regardless of the number of chambers in the power source. The power source may not be capable of propelling the device, unassisted, at a speed exceeding 30 miles an hour, 48.28 kilometers an hour, on a level surface. The device must be equipped with a power drive system that functions directly or automatically only and does not require clutching or shifting by the operator after the drive system is engaged.
Electric powered bicycles slower than 20 km/h without pedaling are legally recognized as a non-mechanically operated vehicle in China.[32] According to "TECHNOLOGY WATCH", this should help promote its widespread use.[33] Electric bicycles were banned in some areas of Beijing from August 2002 to January 2006 due to concerns over environmental, safety and city image issues. Beijing has re-allowed use of approved electric bicycles as of January 4, 2006.[34] Some cities in China still ban electric bikes. 

The pedals on a motorised bicycle must be the primary source of power for the vehicle. If the motor is the primary source of power then the device cannot be classed as a motorised bicycle. For example, a device where the rider can twist a throttle and complete a journey using motor power only without using the pedals, would not be classed as a motorised bicycle.
I've put almost1 thousand miles on the bike in 2 months, and so far I love it! Using the just electric mode only go about 12-13 miles an hour on level ground and I only weigh about 160. So it's not real powerful. But on pedal assist it works great up hills. It folds up quick and easy. It's a real pain putting the rear wheel back on if you get a flat so I recommend getting tire linners. It also would be nice if you could charge the battery off the bike. I think it's well worth the money! Great bike ! Its made it through lots of abuse even through miles of down pouring rain!
Would an e-bike that used a trailing generator to power the electric motor still be considered an e-bike? The purpose of the generator is allow greater distances to be traveled and all day riding. The gen-set that I am looking at uses a 49 cc gas engine with a 12 volt generator, this would be from the ground up build using a 1 hp electric motor. This seems to stay within the state laws of AZ. where I reside. Thanks for your thoughts.
Rad Power’s lineup of 2019 bikes start at $1,699 (there’s also a Cyber Monday special on their 2018 models), proving that electric bikes don’t have to be over $2,000 to have the amenities and quality you need for daily commuting. Of course, that’s still a steep price for some. But as prices keep dropping in the e-bike industry, affordability breeds better access, and this might be the key that our cities—and their traffic—so desperately need.
In the 1870s many cycling clubs flourished. They were popular in a time when there were not cars on the market and the principal mode of transportation was horse-drawn vehicles, such the horse and buggy or the horsecar. Among the earliest clubs was The Bicycle Touring Club, which has operated since 1878. By the turn of the century, cycling clubs flourished on both sides of the Atlantic, and touring and racing became widely popular. The Raleigh Bicycle Company was founded in Nottingham, England in 1888. It became the biggest bicycle manufacturing company in the world, making over two million bikes per year.[31]
The 1968 Vienna Convention on Road Traffic of the United Nations considers a bicycle to be a vehicle, and a person controlling a bicycle (whether actually riding or not) is considered an operator. The traffic codes of many countries reflect these definitions and demand that a bicycle satisfy certain legal requirements before it can be used on public roads. In many jurisdictions, it is an offense to use a bicycle that is not in a roadworthy condition.[citation needed]

Firstly there's a magnetically-fired locking pin in the rear wheel, triggered by kicking a button on the hub. This is fairly secure in itself and almost impossible to remove without destroying the bike. In London, we'd pair it with a more traditional bike lock so there's a more obvious visual deterrent, though a LED matrix screen on the frame does issue a warning to would-be tea-leafs.
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