Piaggio Vespa Master Cylinder HENGTONG & GRIMECA PX, T5, LML 2T-4TPiaggio Vespa Master Cylinder HENGTONG & GRIMECA PX, T5, LML 2T 4T The Vespa Master Cylinder was first introduced in 1998. The first type of Master Cylinder was Grimeca. Then in 2011 the Vespa PX was then fitted with the Heng Tong Braking System. If you need to change this item don't worry! This item is compatible any PX model 1998 onwards. FOR USE ON BOTH DISC BRAKE PX MODELS BOLT ON COMES WITH LEVER Comparison Part No. 563788 56219R 58572R