Chain Keeper Chain Retention Device Merino A generous aero-formed top section

A generous aero-formed top section provides sleek performance and ergonomic support

smooth rolling

2-position adjustable cheek pads in 2 different sizes provide fit refinement for any head shape

drop and reach measured center to center

without punishing your wallet

Chain Keeper Chain Retention Device Merino A generous aero-formed top sectionMounted 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