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Brushless motors. You could put them on a bike but then you'd break the laws governing electric bicycles (500w or 1000w limits depending on the jurisdiction).
by jonnycowboy 14y ago
Brushless motors. You could put them on a bike but then you'd break the laws governing electric bicycles (500w or 1000w limits depending on the jurisdiction).
- wildmXranat 14y agoI'm not familiar with how a bike mounted motor can be tested, but unless the motor has '2000w' stamped on it, you're good to go.
- tisme 14y agohttp://en.wikipedia.org/wiki/Dynamometer http://en.wikipedia.org/wiki/Dynamometer
- mmaunder 14y agoMy first intro to brushless motors was on a delta RC plane. The power makes a gas engine look like a joke. If you've not seen these motors, the basic difference IIRC is that brushless motors don't have brushes so they have less friction, longer battery life and greater power to weight ratio. They remove the brushes by moving the permanent magnets to the rotating part of the motor and use a controller to switch the stationary electromagnets.
- TylerE 14y agoCouldn't you get around that by calling it a moped rather than a bicycle?
- shimon 14y agoOf course, but then you'd be subject to restrictions on where you can use a moped. Depending on where you are, this would likely rule out bike lanes, sidewalks, etc. and thus make the bike less useful. Enforcement is highly variable, though, so this may or may not matter.
- rapind 14y agoThe problem there is that mopeds / scooters are often regulated. For example, in Toronto you need a license and insurance for scooters which drastically increases your costs compared to a bicycle or skateboard (motor or not). I expect some cities are mulling over the regulations on e-bikes since many of them (but not all) are basically scooters but with an electric motor and useless pedals.