Sprocket Reinforced 13 teeth Conical 20 x 18.3mm for Hercules K 50 RL, SE, RE, SL, Sprint, SX, RX, Ultra, Ultra LC, 2, 2 80 AC, RS, RX 9, II 80, AC Chopper, Sport Bike SB 1, 5, KTM RSL, RSW, DKW RT 159