Vortex CK5160 Chain and Sprocket Kit GFRS - GoFast Steel 520 Kit, 1 Down in the Front Stock Steel Rear Fits Suzuki GSX-R1000 01-06 Kit Gearing, Ratio 2.63, Front 16 Rear 42 OE Gearing, Ratio 2.47, Front 17 Rear 42 Kit Components, Front 3270-16, Rear 526AS-42, Chain 520RV3-110