Motorcycle Front Sprocket For Honda CBR400 VF400 XL600V NV600 VT600 1987-1991 15T Fit For CBR400 F F2 VF400 XL400V 1988-1991 XL600V Transalp 1987-1988 NV600C Steed VT600C chopper motorcycles with 520 drive chain system 15 tooth front sprocket CNC machined 15 tooth profile meshes smoothly with standard 525 chain to chain skip reduce running noise hardened carbon delivers great wear resistance for daily street cruising offroad riding Accurate spline mounting dimension match engine output shaft for plug play installation without Consistent tooth hardness lessens chain abrasion extends life of the whole drive train set