Wiseco Forged Series Piston Kit - 431M07100 Honda CR250R / CR250R Elsinore / 250 1978-1984 Brand_Maxxis Big Twin Evolution tappet blocks

Big Twin Evolution tappet blocks do not have counter-bored bolt holes

Straighten damaged fins and remove debris without danger of puncture

Check piston clearance when using OEM crankshaft #79230018000 from '16 (superseded to 79230018100)

ensuring a wind and waterproof closure every time

Locks gears in place for easy installation and removal

Wiseco Forged Series Piston Kit - 431M07100 Honda CR250R / CR250R Elsinore / 250 1978-1984 Brand_Maxxis Big Twin Evolution tappet blocksFeatures Forged from high silicon alloy for maximum strength and dependability Wiseco offers a complete range of popular piston models and years for both trail and racing applications Kit includes piston, rings, circlips and wrist pin Specs Model Forged Series Bore Oversize +1,00 mm Engine Cooling Air Cooled Skirt Coating Non Coated Bore Oversize +1. 00 mm Bore Size 71. 00 mm Product Name Piston Kit Units Kit Piston Diameter 70. 95 mm Piston Material