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 chainring 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 chainring sizes. However please note that Chain Keeper may not work with all frames.
Note: This product is not designed for downhill, freeride, or big hit use.
• 6061 aluminum• 28.6, 31.8 or 35.0mm clamp size• 69g
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If you change your mind about your order, you have up to 14 days to return it to us. It must be unused/unassembled and in its original packaging and condition.
For the quickest response and help with returning your item, please email our customer service team at firstname.lastname@example.org. You’ll also find a returns slip with your delivery, which you can complete and send your item(s) back directly. Once we have received your returns, we will provide a full refund within 5 working days. We regret that we cannot cover the cost of postage of items back to us.
For further information visit our shipping & returns page.