Vertex PRO Complete forged A-coast Piston kitRef : 251037DA / 1095374001

VERTEX Forged Piston Replica – Manufacturer ref. 23941A

Designed for off-road motorcycles, this VERTEX Forged Piston Replica is aimed at motocross enthusiasts looking for a robust high-performance engine part that meets manufacturer specifications. Machined from high-quality aluminium, it incorporates VERTEX's expertise to ensure controlled geometry and a finish suitable for the demands of 250 4T displacements.

• Piston diameter: Ø 76.95 mm (oversize letter: A)
• Recommended bore diameter: 77.00 mm
• Compression: standard (13.5:1)
• Material: forged aluminium
• Part correspondences: rings 274640 – piston pin 032161 – circlips CV16
• Manufactured and inspected according to VERTEX processes

Ideal for preparing or refurbishing a high-performance engine, this piston is particularly suitable for YAMAHA WR/YZ 250 F models of the specified years. Before installation, check the bore and ring thickness, respect the piston-cylinder clearance, and perform a break-in according to the manufacturer's recommendations to ensure longevity and optimal performance.

Main compatibilities: YAMAHA WR 250 F (RE25, 2017), YAMAHA YZ 250 F (CG34, 2015), YAMAHA WR 250 F (CG36, 2015).