
WOSSNER forged piston kit designed for off-road machines. This aluminum piston (oversize letter A) fits bore sizes of 88.00 mm and has a piston diameter of Ø 87.96 mm. Intended for Cross and Enduro practices, it maintains standard compression and is compatible with the 390 cm3 engines listed below.
WOSSNER piston kits include the necessary components for installation: piston, rings, pin, and retaining clips. The components included in this kit are listed below for easy maintenance or ordering of spare parts.
Main compatibilities: BETA RR 390 4T RACING (2024), BETA RR 390 4T (2024), BETA RR 390 4T ENDURO RACING (2019). For optimal installation, follow the manufacturer's recommendations and have clearances and alignments checked by a professional. This kit offers a robust solution for engine restoration or revision in demanding terrains.