The specialized custom neoprene chainstay protector has a custom fit to give a more integrated look while protecting the frame size 99 06 s works ht 99 06 sj ht specialized custom neoprene chainstay protector features quiets derailleur and chain contact compression moulded 5mm25mm neoprene black abrasion resistant outer covering with stitched edges for durability rubber printing on the inside surface keeps the sleeve in place der