BGM PRO shaft sealing rings made of high-quality and ethanol-resistant (E10) FKM / Viton® * CORRECT HEIGHT (20x62x7MM INSTEAD of 20x62x6.5MM) The coupling-side BGM PRO shaft sealing ring has an overall height of 7mm instead of the 6.5mm usual with other manufacturers. The BGM PRO shaft seal is based on the original old model from Piaggio. Anyone who takes apart an old original engine will [...]
