Wiseco Forged Top End Kit 77.00 mm 12.5:1 CR for Yamaha WR250 F 2005–2013 PK1401

Wiseco PK1401 is a top end kit for a 77.00 mm bore.

Wiseco catalogue applications

Specifications

• Manufacturer part number: PK1401
• Product Series: 4 Stroke Forged Series
• Bore Diameter: 77.00 MM
• Piston Diameter: 76.95 MM
• Piston Oversize: STD
• Piston Material: 2618
• Skirt Coating: No
• Compression Ratio Actual: 12.5:1

Included components

Piston #4882M07700, Ring Set #7700XU, Piston pin #S742, Circlip #CW16, Gasket #W5921.

Select by the required finished cylinder bore. Bore diameter and piston diameter are different measurements.