The relationship between the material and the speed of the wheel
Can be a bike simply as three gears, tooth plate, flywheel and rear wheel (front wheel is driven wheel, no power, does not affect the speed, where the role of tire friction), the driver pedal on the dental plate, three Gears keep the same angular speed, the larger the tooth plate, the smaller the flywheel, the faster the flywheel line speed, the faster the speed, the greater the diameter of the wheel, the longer the circumference of the wheel, the same angular speed, The longer the length, of course, do a certain job, so the greater the diameter of the wheel, the ride is also laborious.
In fact, there is no relationship, the bike is the body of the body as the driving force of the machine, its speed and you do the work of the mechanical parts, including the transmission system and the wheel can only change the efficiency of work, and can not change the total power, Is actually a rider.
