Increase your R80 to R100. Torque increase 30%. Pistons are pre-adapted to R80 heads so no cylinder head modifications are necessary. The quality you would expect from Siebenrock. For 1981 and newer.
The forged pistons weigh about 110g less than the originals. With a compression ratio of 9.5:1, the torque is increased, and motor power goes up to 67 hp. The engine revs quicker with lightweight pistons and more driving fun is guaranteed.
For a rebuilt you don't need any cylinder head work! Only the piston and the cylinder are exchanged. Aluminum cylinders with Nisic plating for optimim heat transfer and long life.
040-0902 gasket kit not included.
- Pistons, Cylinders, rings, pins, circlips
- honed and ready for installation
- Forged, low-friction coated pistons (molybdane)
- Nisic plated cylinder liners