Reinforced Esjot sprocket, 13 teeth, Made in Germany. Suitable for Hercules K 50 (from 1963), K 50 RL/SE/RE/SL, K 50 Sprint (from model no. 685 160 552), K 50 SX/RX, K 50 Ultra/LC/Ultra 2/Ultra 2 LC, Ultra 80 AC/RS/80 AC Chopper, RX 9, XE 9, Sport Bike SB 1/SB 5, KTM Comet, RSL, RSW, DKW RT 159. For moped moped with Sachs 50 S/50 SA engine. Conical mount: 20 x 18.3mm, chain type 1/2 x 1/4, 8.51mm rollers. Check dimensions before purchase. Hercules spare part no. 0236 108 000.