To provide some rest and support during riding.
The purpose of the bicycle wheels is to make the bicycle as a whole work. W/o wheels, it'd just be some stuck-together pipes that couldn't be used for anything.
A bicycle can go faster than walking. And it is also used for transportation.
To transport people from place to place quicker, with the exercise
Well, basically you need something to hold the parts together to make it into a working structure as opposed to a pile of parts.
To rotate to allow the bike to move
ferris wheel, a bicycle, a screw and a doorknob ferris wheel, a bicycle, a screw and a doorknob
A bicycle is both.
The wheel, and many other things a bicycle is a compound machine
Depends on make and model of bicycle
A bicycle tire is a tire which fits on the wheel of a bicycle or similar vehicle.
Unicycle = 1 wheel. Bicycle = 2 wheels. Tricycle = 3 wheels.
A bicycle fork is the portion of a bicycle that holds the front wheel and allows the rider to steer and balance the bicycle.
wheel+wheel=bicycle
Wheel and axle.
A bicycle
swirly chairs
The circumference of the wheel is Pi multiplied by the diameter (0.705). Divide 1000 meters (1km) by that answer - and you'll have your solution !