
VERTEX Cast Piston (Manufacturer Ref: 21600A) intended for Cagiva VMX 125 motorcycles from 1986-1988. This aluminum piston, designed as a cast component, is aimed at restoration enthusiasts or workshops that are rebuilding an original top-end on a lightweight roadster.
Designed to replace the moving element of the engine with precise dimensions, this VERTEX piston adheres to the specified measurements for a proper fit in a cylinder of the indicated diameter. The oversize letter "A" indicates that it is a slightly oversized piston, suitable for machined or honed bores. The choice of an aluminum piston promotes reduced weight and appropriate thermal dissipation for 125 cc engines.
Before installation, check the condition of the cylinder, the piston/ring clearance, and the manufacturer's recommendations (e.g., break-in and tolerances). Compatible with the listed models: CAGIVA VMX 125 (1986, 1987, 1988) — ensure the dimensions match for your build or restoration.