MALOSSI piston mono-segment Ø40mm axis 12mm for kit 50cc MHR aluminum on DERBI Euro 1, 2, 3 & 4

Complete piston for MALOSSI MHR 40mm diameter kits. These competition pistons have a high silicon content and a very good alloy, as always with MHR, their manufacture and finish is impeccable.

The change is strongly recommended every 6,000km maximum. We obviously have A / B / C and finally D sides depending on the wear of your cylinder.

Generally on these cylinders, switching to B is recommended at 8,000 or even 10,000 km.