
WISECO Forged Piston designed for cross use: robust and precise, this aluminum piston is suitable for motorcyclists who are overhauling a cylinder with an oversized bore. Its forged construction and machined finish ensure a geometry adapted to the demands of intensive riding on terrain.
This WISECO piston is aimed at owners of small displacement cross bikes requiring a replacement part with a 0.50 mm bore. Supplied as a kit with its segments, it facilitates installation during a re-bore or engine rebuild. Ideal for reassembling a cylinder after machining, it is particularly suitable for YAMAHA YZ 80 models (2000-2001) and YZ 80 LW Big Wheels 19/16.
Before installation, check axial play, segment/piston clearance, and bore dimensions, then follow the break-in procedure recommended by the manufacturer. Replacement part reference W646M04750, designed for the demands of the terrain and the maintenance of cross engines.