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Most electric-assist propulsion motors are of the in-wheel design in the rear wheel, such as geared hub motors (like eZee, Heinzmann, Bafang, BMC, etc.) and direct-drive hub motors (like Crystalyte, BionX, 9Continent, etc.) but mid-drive units (like Sunstar, Cyclone, Ecospeed, etc.) are used as well due to design constraints in velomobile ...
Most public transit buses in the United States and Canada are equipped with bicycle racks, though they are far less common on transit systems outside North America. [4] [5] Bus-mounted bike carriers are usually attached to the front of the bus, and most are capable of collapsing when not in use. [6] [7] Some buses have rear-mounted racks. [8]
Since rear racks are not structural parts of the bicycle they cannot handle much weight or torque loading. Improvised: Ropes, bungee cord, chain, cable, etc. Usually not dependable, often dangerous to rider and cargo. Bike trailer for toddlers and small children. Single-wheel trailers generally use a special frame hitch which attaches to both ...
Another type of electric assist motor is the mid-drive system, where the electric motor is not built into the wheel but is usually mounted beside or under the bottom bracket shell. 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.
An electric wheel hub motor car was raced by Ferdinand Porsche in 1897 in Vienna, Austria. He developed his first cars as electric cars with electric wheel hub motors that ran on batteries. [15] A racecar by Lohner–Porsche fitted with four wheel-hub motors debuted at the World Exhibition in Paris in 1900. Alongside it a commercial model was ...
The first cargo bikes were used by tradesmen to deliver mail, bread and milk amongst other things. Early cargo bikes were heavy-duty standard bicycles, with heavy carriers at front or rear, sometimes with a smaller front wheel to accommodate a large front carrier.
Among these, Golden Eagle Bike Engines currently produces a rear-engine (rack-mounted) kit using a belt to drive the rear wheel. Staton-Inc., a motorized bicycle manufacturer of long standing, also uses a rack-mount with either a tire roller-mount (friction drive) or a chain-driven, geared transmission.
A chain drive and rear derailleur gear change, the most popular system in use today A shaft-drive with crankset and rear gear hub. Bicycle drivetrain systems are used to transmit power on bicycles, tricycles, quadracycles, unicycles, or other human-powered vehicles from the riders to the drive wheels.
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