Overrev 60mm Piston (by Wössner)

All possible piston sizes are available from motorcycle accessories. However, for a 60mm bore, there have only been 1-2 candidates with various disadvantages until now.

The Overrev 60mm piston closes this gap - it is a high-quality replacement for the Rotax Polini piston.

Manufactured by Wössner, this piston, with its single piston ring whose ring gap runs centrally over the boost port, is a welcome upgrade for all Parmakit Wforce, Quattrini M160, Polini Rotax, Falc 60 cylinders and will certainly be the basis for various tuning projects. This piston can rightly call itself "State of the Art".

A special feature of this piston: two piston pins are included. These have different lengths, and two grooves are machined into the piston for each. For the short piston pin, the inner grooves are used. For the longer pin, the outer ones. The idea behind this is to be able to change the balancing factor of the crankshaft.

Ring position: 90° to the piston pin (centrally above the boost port)

Piston pin: 15mm

Compression height: 29mm

Piston crown elevation: 3mm

Skirt length: 64.5mm

Nominal size: 59.94mm

Piston pin lengths: 45mm and 50mm

Weight with short pin: 199g

Weight with long pin: 205g