Wiseco Forged Top End Kit 78.00 mm 13.1:1 CR for Honda CRF250 R 2008–2009 PK1858

Wiseco PK1858 is a top end kit for a 78.00 mm bore.

Wiseco catalogue applications

Specifications

• Manufacturer part number: PK1858
• Product Series: 4 Stroke Forged Series
• Bore Diameter: 78.00 MM
• Piston Diameter: 77.95 MM
• Piston Oversize: STD
• Piston Material: 2618
• Skirt Coating: Yes
• Compression Ratio Actual: 13.1:1

Included components

Piston #4949M07800, Ring Set #7800YB, Piston pin #S686, Circlip #CW16, Gasket #W6239.

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