VintCo PSY17-2.5 is a piston kit for 1973-1975 Yamaha RD250 models, intended for vintage 2-stroke engine rebuilds. The kit includes one complete piston assembly with piston, rings, pin and clips, and is manufactured using modern production methods for OEM-level fit and performance.

Features

• Complete piston assembly
• Includes piston, rings, pin and clips
• Suitable for vintage 2-stroke engine rebuilds
• Wrist pin bearing available separately
• Additional size options available
• Assists running-in

Specifications

• VintCo Part Number: PSY17-2.5
• Nominal piston size: 56.5 mm
• Oversize: +2.5 mm
• Piston measurement: 56.43 mm
• Clearance: 0.07 mm
• Forged piston
• MoS2 coated
• Made in Germany

Vehicle Fitments

• 1973 Yamaha RD250
• 1974 Yamaha RD250
• 1975 Yamaha RD250