Fork springs guide sleeves, 2 pcs., suitable for Zündapp GTS 50 type 529-020 to 024, 529-026 to 029, 517-21L0, 21LA, 39L0, C 50 Sport 517-21L0, 21LA, 21LB, KS 50 Sport 517-51LP, KS 50 Cross 517-51L0, 51LA, 51LH, 53L0, 53LA, KS 50 Super Sport 517-51LB, 51LG, 53L1, 53LB.