Ethirteen Lg1 Chain Guide 32-38T Iscg-05 With Bashguard Blacke*thirteen Chain Retention Systems for downhill and 4X race as well as bike park & freeride.Adjustable angle, direct-mount bashguard accommodates all chainstay designsWearplates feature chainring size indicator marks for simple position adjustmentsFeatures new Tech-3 stealth idlerDesign d..