Bicycle Warm Up Avctivity printable pdf download

Bicycle Warm Up Avctivity

Name: ____________________________

Bicycle Activity Warm Up

The pictures below show you some of the basic parts of a bicycle. There are two places

on a bike where gears can be found. The front gears (also called the “chainwheels”)

are attached to the pedal arms (which hold the pedals out at their ends). Then there

are gears attached to the rear wheel’s hub. All the rear gears are contained in a

cluster of gears on a “freewheel,” which only turns the rear wheel when you pedal

forward. It is “free” of the wheel if you pedal backwards. The two sets of gears are

connected by the bicycle’s chain. All the gear teeth are the same size. Why must this

be the case?

The gear shifts on bikes can be on the handlebars, or mounted on the bicycle frame:

Left gear shift, for front

Right gear shift, for rear

gears. Note that on this

gears Note that on this

bike, there are three

bike there are 7 marked

marked positions (3 front

positions (7 rear gears)

gears)

The left shifter controls the front derailleur, for the front gears, or chainwheels. The right

shifter controls the rear derailleur, for the rear gears, or freewheel.

The derailleurs, as their name suggest, “de-rail” the chain from one gear to the next, by

pushing the chain to the left or the right.

Bicycle Warm Up Avctivity