2004 Honda CRF250 Top & Bottom End Wiseco

Top End Description:

• Performance sets designed for a piston replacement
• Top-end gasket sets include high-performance head, base, intake and exhaust gaskets
• Cost-effective way to raise compression without expensive high-compression pistons or cylinder head work
• Made in the USA

Contents:

• 7800YB-78.00MM Ring Set .9MM x 1.5MM
• CW16-Round Wire Pin Locks 16MM (Pair)
• S686 - Pin - 16 X 10.3 X 41.5mm Unchromed SW
• Top End Gasket  Set

Displacement: 249cc

Bore-Standard: 78.00mm

Bore-Actual: 78.00mm

Bore-Oversize: STD

Stroke: 52.2mm

Cylinders: 1

Compression Ratio-Actual: 12.9:1

Skirt Coating: Moly

Includes piston kit, crank assembly, main crank bearings, and full gasket kit with oil seals