
VERTEX Forged Piston Replica (manufacturer ref. 23861A) designed for off-road engines. This machined replacement part is made to fit oversized bores, and this aluminium alloy piston is aimed at motocross riders looking for a robust and precise component for their RM-Z 250 and other compatible machines.
Designed for fitting in size A, this piston requires adherence to bore tolerances and manufacturer recommendations during installation (pins, rings, clips, and radial play). The forging ensures a controlled geometry of the skirt and head for a reliable fit in the cylinder. Ideal for restoration or engine preparation on track, it is suitable for the listed compatible models.
Compatible Motorcycles (examples): SUZUKI RM‑Z 250 (2013, 2014, 2015).
Before installation, check the condition of the cylinder, perform bore checks, and follow the break-in recommendations to ensure optimal lifespan of the assembly.