Vhm Piston Kit Malossi Derbi 50cc `15-> (20mm) Ø39.82

VHM pistons are 100% CNC machined from high quality material and have a non-circular profile to better prevent engine lockups. They stand for high performance, longevity and keeping high performance during it's lifetime. Important note: use this piston only for aluminium cylinder! High performance Direct replacement Longevity Keeps high performance during lifetime This piston needs a clearance of 0.05mm! Only use for aluminium cylinder! For use in water cooled engine only!