Plastic ring, inside the chrome pipe / rubber bellow KS50 1964-83, 517/529

This product is compatible with , Zündapp , 514 KS100 (281), , 515 Sport Combinette / KS50 (267, 3-speed & 276, 4-speed), 516 KS50/KS50 Super SL (283, 5-speed) 517-01 KS50 Super SL (284-01, 5-speed) (DE) 517-05 C50/CS50 (266-50L1, 3-speed manual/fan) (NL) 517-10/517-30 KS50 1967–76 (278-03, 3-speed) (SE) 517-35 GTS/KS50 (280-71L0/L5, 4-speed) (NL) 517-39/40 GTS50 (280-75, 4-speed) (DE) 518 KS100 (282/286) 529-020/022/023/024/026 GTS50 (280, 4-speed) (DE) 529-03 CS50 (278, 3-speed manual) (NL) 529-05 GTS50 (280, 4-speed) (NL) 529-07/529-10 KS50 (278, 3-speed foot-shift) (SE) 530 KS50/KS80 (284/314, 5-speed)