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Recommended for bikes with upgraded engines using the Koso North America 170cc Big Bore kit and 4V cylinder head (sold separately)
40 lb/in Type Fork Units Pair
00 mm Type Single Ring
Material High-Carbon Stainless Steel Mounting Position Front Mounting Position Front Left Type One Piece (Fixed) Units Each Mounting Position Rear Color/Finish Silver Riding Style Street Product Name Brake Rotor
Wiseco Forged Series Piston Kit - 478M08700 Yamaha Dirt Bikes 1982-1984 Brand_Rivco Products Recommended for bikes with upgradedFeatures 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 Piston Material 4032 Aluminum Alloy Piston Diameter 86. 92 mm Engine Type 2 Stroke Units Kit Bore Oversize Standard Displacement 487 cc Riding Style Off Road Skirt Coating Non Coated Product Name Piston Kit Bore
