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Problem Solvers Chain Spy

Problem Solvers Chain Spy
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Problem Solvers' Chain Spy is a chain retention device that keeps a watchful eye on your chain while you focus on blasting along the path ahead. Choose between the 31.8mm clamp model, or the Direct Mount model, depending on your bike's needs.

WARNING: This product can expose you to chemicals, including lead, known to the state of California to cause cancer and birth defects or other reproductive harm. For more information, go to

Part Numbers

Option UPC MPN
31.8mm w/shims for 28.6 708752095236 CH0905
Direct Mount 708752119178 CH0906