Chain Checker
Best maintenance tool for cyclists looking to extend drivetrain lifespan.
Maximize your drivetrain's lifespan with the Park Tool Chain Checker (CC-2). This essential maintenance tool helps you identify chain wear accurately, preventing poor shifting and premature component wear. Manufacturers recommend chain replacement at or before 1% stretch. The CC-2 makes this simple: insert its pins into two links, press the swingarm gauge, and read the gauge window for a precise measurement. Praised for its durability and ease of use, it's a versatile addition to any cyclist's toolkit, ideal for road, mountain, and commuting bikes.
$24.95
Owner Satisfaction
4.7
/ 5
Category Rank
68
/ 2100
#68 in Components
Price vs Category Average
-76%
Below average
Model
2
/ CC-
Who it's for
- Cyclists looking to extend the lifespan of expensive drivetrain components
- Novice mechanics needing a fast and foolproof maintenance solution
- Professional shop technicians requiring long-term, reliable tool performance
Who should skip it
- Precision-focused riders using modern, tight-tolerance drivetrain systems
- Budget-conscious home mechanics preferring simple, low-cost measurement methods
- Advanced tuners needing a comprehensive assessment of all wear factors
Performance breakdown
Measurement Precision
Provides highly accurate readings to prevent costly drivetrain component damage.
Ease of Use
Simple swingarm design makes checking chain wear a quick, intuitive process.
Build Durability
Rugged construction ensures consistent performance over years of regular shop use.
Compatibility
Works seamlessly across virtually all bicycle chain types and speeds.
Portability
Lightweight and compact enough to fit easily into any saddlebag.
Maintenance Utility
An essential tool for extending the lifespan of expensive cassette gears.
Key Specs
Model
CC-2
UPC
763477001313
Store SKU
95339
Tool Type
Chain Checker
Intended Use
Drivetrain maintenance (checking chain wear/stretch)
Compatible Components
Chain
Functions Included
Determine chain wear and stretch
Compatible Bike Types
Commuting/City, Mountain Biking, Road Biking
Features
- Quickly measures chain wear and stretch
- Works on any bicycle chain
- Durable construction for lasting use
- Lightweight and easy to handle
- Essential for drivetrain longevity
- Simple measurement process
- Prevents poor shifting
- Avoids uneven drivetrain wear
What customers say
Customers highly value this chain checker for its exceptional accuracy and ease of use, making chain wear assessment simple for all skill levels. The robust build quality assures long term reliability, aligning with the trusted Park Tool reputation. A key benefit noted is the significant cost savings achieved by preventing premature wear on expensive drivetrain parts like cassettes. While the initial cost is sometimes mentioned, reviewers agree the superior precision and clear go no go indication fully justify the investment. This tool is celebrated as a fundamental, smart investment that promotes drivetrain longevity and smoother cycling performance.
Know before you buy
For regular riders, checking your chain every 500 to 1,000 miles is a good rule of thumb. If you ride in wet or muddy conditions, you should check it more frequently, as grit accelerates wear.
Yes, the CC-2 is compatible with virtually all bicycle chains, including those for 12-speed drivetrains. It measures the physical stretch of the chain links regardless of the number of speeds.
A 1% reading indicates that your chain is significantly worn and should be replaced immediately. Continuing to ride at this level of stretch will cause premature wear to your cassette and chainrings, which are much more expensive to replace than the chain itself.
Ensure the chain is clean before measuring, as built-up grime can interfere with the pins. Simply insert the pins into the chain links, press the swingarm gauge until it stops, and read the measurement in the window.
Yes, the CC-2 is universal and works on single-speed, multi-speed, and e-bike chains. Because it measures the distance between pins, it is effective across all bicycle drivetrain types.
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$25