Attack pinion Derbi euro 2/3/4 pitch 420 IGM

Quality front sprocket from manufacturer IGM for DERBI engine. Choose the number of teeth you need.

Gear ratios in geared mopeds are extremely important to get the most out of the engine. A gear ratio that is too long may prevent you from taking full advantage of the engine's power, and one that is too short as well, so you usually need to follow some guidelines to choose them.
To understand this: if you use fewer teeth it means a shorter gear ratio (higher RPM), whereas if it has fewer teeth it means a longer ratio (higher top speed)

Attention: Carefully check the type of splines on the front sprocket with the front sprocket lock before ordering.

Distance between centers and required plates:

• Front sprocket 11: 25mm and M5 Plate: 93231
• Front sprocket 12: 28mm and M6 Plate: 93231
• Front sprocket 13: 28mm and M6 Plate: 93231
• Front sprocket 14: 28mm and M6 Plate: 93231
• Front sprocket 15: 28mm and M6 Plate: 93231