Chain Keeper Chain Retention Device

The Bike House, Bike Shop Verified independent store

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Mounted in place of a front derailleur, the Chain Keeper works with single and 1x multi speed drivetrains using a narrow chain. The chain block surrounds the chain as it meets the chainring and prevents it from skipping off. Accommodates a range of chain line measurements and chainring sizes Not designed for downhill/freeride/big hit use Show more