VHM piston (14mm piston pin) RS125 NF4 1987-’94 – RS250 NF5 1987-’92

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. This piston consists of an inside coating, which reduces micro welding, lowers the friction on the pin, prevents piston bore galling and provides a very good thermal conduction. Furthermore, this piston includes special Z-clips, which prevents the clips from circling and affecting the groove.

• High performance
• Direct replacement
• Inside coating and Z-clips
• Longevity
• Keeps high performance during lifetime

This piston needs a clearance of 0.07mm!

Piston sizes:

53.92
53.93
53.94
53.95

Fill in the comment box (check out) the size you need.