
VERTEX Cast Piston — Manufacturer part number: 21889C
Cast aluminum piston designed for 125 cm³ engines, suitable for the WMX125 models (1988). This VERTEX piston features a standard compression geometry and a finish suitable for both Cross and Roadster uses. Its aluminum construction ensures a good balance between weight and durability for the demands of small single-cylinder engines.
This piston is intended for replacement during re-boring or to restore the piston/cylinder clearance according to the manufacturer's specifications. Its cast manufacturing provides a reliable solution for reassembling 125 engines while adhering to the indicated bore tolerances.
Main compatibilities:
Before installation, check the compatibility of dimensions, the condition of the cylinder, and the piston/ring clearance to ensure optimal operation of the upper engine.