Key features stainless steel cartridge bearings with low friction seals for reduced drag labyrinth style spacers encapsulating protecting the bearings increasing product life and reducing maintenance lightweight yet robust design available in black silver gunsmoke red blue and purple will fit a wide range of rear mechsjockey wheels tech specs gt cnc machined from 2014t6 aluminium 11 tooth available in black silver red blue gun smoke and purple weight 23g per pair