The MRP 1x V3 CS is a durable and lightweight chainguide that features a dual-material "TR" upper guide with a soft material on the interior walls for quiet performance. Ideal for 1x10, 1x11, and 1x12 drivetrains Tracked and grooved upper guide and backplate interface increases stiffness and eases installation Compatible with chainlines 49mm and wider Composite backplate 28-34t range (oval compatible up to 32t)