Make de-rails a thing of the past with the Wolf Tooth Components Gnarwolf Chainguide. Using your ISCG-05 mounts, the Gnarwolf bolts on to your bike in a matter of minutes. Setup is a breeze with its no-shim system for chain line adjustment from 48-54mm and infinite vertical alignment that can fit 28-36 tooth chainrings. When it comes time for service, the Gnarwolf can be moved out of the way so you can get your chain off without any adjustments, making the Gnarwolf the guide to end all chain guides.