Rear sprocket for Aprilia RS Tuono 420 pitch IGM - steel

High-quality sprockets, IGM brand. As with scooters, gear ratios in geared mopeds are important to get the most out of the engine. A ratio that is too long may prevent you from taking full advantage of the engine's power, and one that is too short can have the same effect; normally, you should follow certain guidelines when choosing them. The most important thing to know is that the higher the number of teeth on the pinion, the longer the ratio, and the fewer teeth, the shorter it is. In the case of the sprocket, it is completely different: more teeth means a shorter ratio, while fewer teeth means a longer one.

Valid for the following models:

-RS 50 (99->)
-TUONO 50