CC-4.2 Chain Checker
CC-4.2 Chain Checker
CC-4.2 Chain Checker
CC-4.2 Chain Checker
CC-4.2 Chain Checker
CC-4.2 Chain Checker
CC-4.2 Chain Checker
CC-4.2 Chain Checker
Park Tool

CC-4.2 Chain Checker

$29.99
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UPC / SKU
UPC
763477001573
SKU
CC-4.2
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CC-4.2 Chain Checker $29.99
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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

Bike shipping: $100 for non-electric bikes; $250 for e-bikes.

Higher rates apply to certain long-distance destinations, including Newfoundland and Labrador. Additional charges may apply to remote or rural locations and oversized or overweight items.

Free standard shipping on eligible orders over $150, excluding bikes and e-bikes.

Your shipping charge is shown at checkout before you place your order.

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  • Request deadline: Within 7 days of receiving your bike or 14 days of receiving other items.
  • Condition: Brand-new, never used, and in original packaging. Bikes must be never ridden.
  • Final sale: Sale and special-order items cannot be returned or exchanged. A discount code on a regular-price item does not make it final sale.
  • Return deadline: Approved items must reach us within 7 days of approval.
  • Processing fee: 5% of the amount paid for returned items, excluding taxes and shipping, is deducted from your refund—even for returns brought to a store.
  • Shipping: You pay return shipping or may bring approved returns to either store. Original delivery charges are non-refundable.
  • Start a return: Submit our Online Orders Support form and wait for approval before returning anything.

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For answers to frequently asked questions, visit our FAQ page.

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