Genuine Piaggio Vespa Px Pk GTS Disc EFL LML Front Hub Backplate "V" Shape Seal

OEM Numbers (for the purpose of comparison) 177521 (PIAGGIO), SF504-1103 (LML). Sealing Ring Between Backplate & Fork Link. VESPA PX 80 E Lusso/ EFL/ Arcobaleno / Elestart 80 V8X1T 2T AC `83-`90. VESPA PX200 E Lusso/ EFL/ Arcobaleno / Elestart 200 VSX1T 2T AC `83-`97.