Bicycle Gears
Change the front and rear gears to compare travel per turn and pedal effort on a hill.
A simplified teaching model.
One pedal turn → wheel: 2.00 turns
Travel: 4.21 m · Relative effort: 2.00
Combinations with this ratio: 30/15 · 40/20 · 50/25
How to play
Choose front and rear tooth counts, then turn the pedals with Auto. The hill increases the effort indicator. Look for different combinations with the same ratio.
Learn more
Tire diameter is an illustrative 0.67 m. Hill resistance is set to twice the flat-road value for comparison; this does not represent a particular gradient or measured force. Slip, losses and inertia are omitted.