enduro-zero-derailleur-pulleys-for-sram-xx-1
enduro-zero-derailleur-pulleys-for-sram-xx-1, Enduro Zero Pulley Assemblies use grade 5 ceramic bearings. Races are won and lost by derailleur pulley drag.VV" type 2-lip non-contact Silicone labyrinth sealsNylon/graphite retainer