Wiseco 4-Stroke Forged Series - ø77.00mm Piston kitRef : WI00159A / 1122572002

Manufacturer reference: W40151M07700B — WISECO 4T Forged Series piston kit Ø77.00 mm

This Wiseco piston kit is designed for motocross riders looking to replace a worn piston or to prepare their engine for intensive use. Made from forged aluminum, it features a real diameter of Ø 76.960 mm (oversize letter B) and maintains a standard compression height. The forged design is favored in competition for its material uniformity and strength under stress.

• Usage: Motocross
• Piston diameter: Ø 76.96 mm (oversize B)
• Compression: standard
• Material: forged aluminum
• Delivery: ring kit
• Current compatibility: YAMAHA YZ 250 F (CG39) 2017-2018, YZ 250 F (CG34) 2016

Recommended installation and checks: check the cylinder bore, piston/cylinder clearance, and adhere to the manufacturer's torque and tolerance during installation. This kit naturally integrates into an engine preparation while offering the finish and precision expected by demanding riders.