How many pedals does a standard bicycle have? A standard bicycle has two pedals.
The pedals are the two foot-operated platforms attached to the ends of the crank arms. As a rider pushes them around, the cranks turn the bottom-bracket spindle and drive the bicycle’s drivetrain. On a conventional chain-drive bicycle, that motion turns the chainring, which transfers power through the chain to a rear sprocket and the back wheel.
The two pedals sit on opposite sides of the bicycle, allowing the rider to apply force continuously as one leg rises while the other falls. Their spindles usually use different thread directions: the right pedal commonly has a right-hand thread, while the left pedal uses a reverse, left-hand thread. This arrangement helps counter loosening caused by pedal precession.
“Standard” here means an ordinary two-wheeled bicycle, not a special vehicle or a component count that includes crank arms. Pedal designs vary widely. Flat platform pedals, quill pedals with toe clips, and clipless pedals all perform the same basic job, even though clipless systems lock into cycling-shoe cleats. Tandem bicycles still use pedal pairs for each rider, so their total number can be greater than two.