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The Problem Solvers Chain Spy helps to keep a watchful eye on the chain so you won’t have to. It’s easy to install, and easy to use. Helps to keep the chain in its place on a 1x drivetrain.
Reviewed by 1 customer
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Comments about Problem Solvers Chain Spy:
not yet brought it to extreme trail (although warned by warranty) but this chain guide will do in most circumstances, good alternative and cheaper than the branded)