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Park Tool
Park Tool CC-4.2 Chain Checker Tool
MPN: CC-4.2 · UPC: 763477001573
$19.95
In Stock — Ships in 4-9 Days
📦 Ships from Warehouse — 4-9 Business Days
🏪 Free pickup: 26 Essex St (Rear), Andover MA · 978-270-4895
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WARNING — California Proposition 65
WARNING Cancer & Reproductive Harm | P65warnings.ca.gov
A worn bicycle chain can cause poor shifting and expensive drivetrain damage. The Park Tool CC-4.2 Chain Checker is a drop-in gauge that measures chain wear accurately. It contacts the chain in three places, eliminating guesswork. Compatible with 5 to 13-speed and single-speed chains, it indicates wear at 0.5%, 0.75%, and 1.0%, matching manufacturer replacement recommendations.
- ✓ Measures bicycle chain wear accurately, preventing expensive drivetrain damage
- ✓ Laser-cut design contacts the chain at three points, providing quick and precise wear measurement
- ✓ Compatible with 5 to 13-speed derailleur chains and single-speed chains
- ✓ Indicates chain wear at 0.5%, 0.75%, and 1.0%, aligning with manufacturer recommendations for replacement
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$19.95
In Stock — Ships in 4-9 Days