CNC machined from solid billet aircraft grade Aluminium.Stainless steel sealed roller bearings with low contact seals for reduced drag.Labyrinth style spacers encapsulating / protecting the bearings, increasing product life and reducing maintenance.Lightweight yet robust design.Available in our standard range of Colours.Available in 6 Colours:- Black, Gold, Red, Blue, Gunsmoke and Silver11 ToothWeight:- 23g per pair.Note: These Jockey wheels do not fit Sram rear mechs with two pin wheel location.