
PROX Cast Piston (manufacturer part number: 01.3005.025): replacement piston for small single-cylinder engines, designed for Cross and Roadster uses. Machined from aluminum, this piston features a dome-shaped head and comes in standard compression, corresponding to a oversize +0.25 mm (letter 025), with a nominal diameter of Ø 56.25 mm.
Be sure to check the condition of the cylinder and the bore before installation: this oversize (+0.25 mm) is intended for reboring the sleeve. For a complete reassembly, associated parts can be ordered separately: replacement rings 260091, replacement pin 032025, and clips CP1410G.
This piston is particularly suitable for the following models:
A product from the PROX range, this piston is aimed at riders looking for a replacement part that meets factory specifications to restore the top end of the engine to the correct configuration. Always check compatibility with your engine and follow assembly and break-in recommendations.