Paul Components Chain KeeperThe Chain Keeper is a guide to keep your chain right where it belongs. Mounted in place of a front derailleur, the Chain Keeper works with single chain ring drivetrains using a narrow chain. The chain block surrounds the chain as it meets the chain ring and prevents it from skipping off. TECHNICAL INFORMATION 6061 Aluminum Weight 69g Finish Anodized, Anodized Color Black, Purple, Silver Clamp Size 28. 6mm, 31. 8mm, or 35. 0mm Chainline Range 34 55mm
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