The Park Tool CC-4.2 Chain Checker is an essential tool for cyclists who want to maintain their bike's drivetrain efficiently. This drop-in style gauge accurately measures bicycle chain wear, ensuring that you can easily determine when it's time for a chain replacement.

Key Features:
  • Accurate Measurement: The CC-4.2 measures a long section of the chain and strategically contacts it in three places, providing precise readings on chain wear.
  • Compatibility: This tool works on any 5 to 13-speed derailleur chain, including popular brands such as SRAM® T-Type, SRAM® Flattop™, Shimano® XTR® 12-speed, and Campagnolo® Ekar™ 13-speed chains, as well as single-speed chains.
  • Wear Indicators: The chain checker is designed to indicate wear levels at 0.5%, 0.75%, and 1.0%, which are the critical points at which most manufacturers recommend chain replacement.
  • Easy to Use: The drop-in design allows for quick and straightforward measurements, taking the guesswork out of chain maintenance.

Who is it for?
The Park Tool CC-4.2 Chain Checker is ideal for both amateur and professional cyclists who want to ensure optimal performance from their bikes.

Specifications

Mounting Position
Compatibility
Weight
Material
Torque Setting
Biodegradable
Bottom Bracket
Compatible Chains
Lubricant Type
Length
Volume
Manufacturer Warranty
Manual
Cage Length
Total Capacity
Low Sprocket Max
Shifting Actuation
Speed
Number of Chainrings
Top Sprocket Min
What's Included
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