Vortex CK2148 Chain and Sprocket Kit WSS - Warranty Steel Kit, Stock Gearing Fits Honda CBR1000RR 04-05 Kit Gearing, Ratio 2.56, Front 16 Rear 41 OE Gearing, Ratio 2.56, Front 16 Rear 41 Kit Components, Front 3523-16, Rear 251S-41, Chain 530SV3-114