ATHENA 0910-2505 S4F09800004B Piston Kit for Athena Big Bore Cylinder Piston Kit - 97.95 mm - Yamaha Brand_Akrapovic Color/Finish Green Units Each Product

Color/Finish Green Units Each Product Name Sprocket Style Dual Tooth Count 50 Chain Size 520 Material Heavy-Duty Steel Outer Ring Mounting Position Rear Riding Style Adventure Touring / Dual-Sport Material 7075-T6 Aluminum Inner Ring Riding Style Off-Road

Product Name Wrench Style Factory Units Each Base Color Black Application Wheel Hub Riding Style Street Type Lug Nut

Product Name Crankshaft Kit Units Kit Riding Style Off-Road Type OE Replacement

11 mm Riding Style Off-Road Length 10

ATHENA 0910-2505 S4F09800004B Piston Kit for Athena Big Bore Cylinder Piston Kit - 97.95 mm - Yamaha Brand_Akrapovic Color/Finish Green Units Each ProductFeatures High resistance to mechanical and thermal stresses Has been tested on engine dynamometer benches under progressive stress load, and thereafter on track to validate it performance even in the most extreme conditions Specs Compression Ratio 12. 4: 1 Displacement 450 cc Style Forged Big Bore Model Racing Piston Material Forged 2618 Aluminum Engine Type 4 Stroke Units Kit Bore Size 97. 95 mm Riding Style ATV Product Name Piston Kit Type B