520 Motorcycle Front Sprocket For Suzuki SFV650 Gladius SV650 SV650X GS500E RGV250 400 Inazuma GS400 Engine Parts Fit For SFV650 Gladius SV650 SV650A SV650X GS500E RGV250 400 Inazuma GS400 motorcycles; drive shaft spline; fits standard 520 drive chain Direct bolt on mounting design; aligns shaft tooth position; no extra during chain drive assembly Smooth polished tooth surface; reduces chain friction loss; maintains stable power output in daily highway riding hardness structure; supports frequent speed rotation; slows surface abrasion over long mileage Standard inner spline tooth dimension; size matching; keeps tight connection with front drive shaft