MRP 1x ARg Chainguide Drop Zero Don't let a dropped chain leave you greasy and chasing the group. This compact guide adds lightweight, quiet chain security to any 1x gravel or all-road bike, and you'll barely notice it's there. Features Streamlined alloy upper guide, light and compact at about 25 grams8mm of chainline adjustment, dial in the fit for your drivetrain Nitrile rubber o-ring, eliminates chain noise Wide chainring range, one size fits typical 38-54T rings (about 36-52T oval)Braze-on mount, compatible with 43-51mm chainlines for modern gravel and road 1x SPECIFICATIONSChainring Range38-54T (varies by braze-on location)Weight24g | Mrp | 1X Arg Chainguide 38-54T | Rubber