Gears

Gears The figure above shows a chain gearing system, which is the most commonly used in bicycles. The shaft driven system is more complex so I prefer to use the chain driven system in the schematics. Deraileur gearing systems usually allow to change between 2 or 3 chainring sizes and 5 to 10 rear sprocket sizes. For internal gear hubs, the rear wheel and sprocket move at different speeds, except when in direct gear. This situation can be modeled as a variable rear sprocket whose number of… More information...