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Yes, the Amish people can and do ride bikes all the time.
yeah why wouldn't they
Any bike with pedals.
If you're talking bikes it's a kind of gearbox that's built into the cranks and the pedals.
There is no information on how many bikes have been invented. The bicycle dates back to the mid 1800s when the pedals were attached to the front wheels.
you sit on it and push the pedals around in a circle like a rode bike but is off road .
Because on a high-end bike the rider is expected to chose what type of pedal he prefers himself, so as often as not the bike is sold w/o pedals.
No. There are two common standards, 9/16" and 1/2", and they don't mix.
Don't know any penny bikes, but there were penny-farthing bikes. These had really big front wheels, with the pedals attached directly to the wheel axle, and a quite small rear wheel.
Cheap bikes are made with cheap parts. Plastic pedals are cheap to make. Better pedals are made out of metal. (Worth noting: better bicycles don't come with pedals at all. This way the rider can get the pedal system that works for the rider.)
Real early bicycles didn't have pedals, and you'd have to kick your way forward. No mechanical advantage at all. Slightly later bikes had pedals fixed to the wheel, which offered some sort of mechanical advantage through the circumference of the wheel and the length of the crank arms. Then came the chain driven bikes which are fairly similar to the modern bicycle. However, with the gearing systems available today, bikes have very adjustable mechanical advantages. from far less than the early bikes to considerably more than the early bikes.
if you dont like dirt bikes "il throw a granade at you ohh ohh"