Honda Motorcycle 4 Stroke Offroad Part Number 8604D050 Bore Size 85.5 mm Clearance 0.06 mm Compression Height 26.2 mm Compression Ratio 11:1 Cylinder No. 1 Cyl./Kit Displacement 397 cc Dome Volume Engine Code Piston Weight Stroke Valves/Cylinder 4 Gasket P/N Lock P/N CW20 Pin P/N WP052 Ring Set P/N 855XSY Rod P/N P4021 Product Fitment