Vortex CK2133 Chain and Sprocket Kit WSS - Warranty Steel Kit, Stock Gearing Fits Honda CBR600RR 03-06 Kit Gearing, Ratio 2.69, Front 16 Rear 43 OE Gearing, Ratio 2.69, Front 16 Rear 43 Kit Components, Front 2917-16, Rear 252S-43, Chain 525SV3-112