
VERTEX Cast Piston – Manufacturer Ref. 22520A
Replacement cast piston designed for the listed 125 cm³ models, suitable for cross and roadster uses. Made of aluminum, this oversized piston letter A corresponds to a piston diameter of Ø 53.93 mm for a bore of 54.00 mm. Standard compression, raw finish compliant with design specifications for installation on compatible engines.
Common compatibilities: MUZ SM125 (2002), GAS GAS SM 125 (2002), YAMAHA YZ 125 (CE08) (2001) — check the exact compatibility with your model and year before installation. For reliable installation, check the piston/cylinder clearance, replace the ring, and lubricate the pin and bearing surfaces according to manufacturer recommendations. Suitable for experienced amateur mechanics and workshops looking for a robust replacement part for maintenance or engine rebuilding.