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The 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.
The Chain Keeper clamps on to the seat tube of the frame. The portion of seat tube where the clamp mounts must have a circular profile and a diameter of 28.6, 31.8, or 35.0mm, (+/-0.5mm).
Designed with adjustability in mind, the Chain Keeper can accommodate a range of chainline measurements and chain ring sizes. Note: This is not designed for downhill, freeride, or big hit use.
Specifications
Material: 6061 Aluminum
Finish: Anodized
Anodized Color: Black, Purple, Silver
Clamp Size: 28.6mm, 31.8mm, or 35.0mm
Chainline Range: 34-55mm
Mfr Claimed Weight
69g
