Rear sprocket for Aprilia RS 50 <1998 pitch 420 IGM - steel

High-quality sprockets, IGM brand. As with scooters, the gear ratios in geared mopeds are important to get the most out of the engine.
A gear ratio that is too long may prevent you from making full use of the engine's power, and the same goes for one that is too short. Normally, you should follow certain guidelines to choose them.

The most important thing to know is that the higher the number of teeth on the sprocket, the longer the gear ratio, and the lower the number of teeth, the shorter it is. In the case of the rear sprocket, it is completely different: if it has more teeth, it means a shorter gear ratio, whereas if it has fewer teeth, it means a longer one.

Valid for the following models:

- RS 50 (<- 98). (6 mm / REINFORCED) Single arm.