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⚙️ Stay ahead of the ride—measure chain wear like a pro!
The Park Tool CC-4.2 is a precision chain wear checker designed for all 1/2" pitch bicycle chains, including 5-13 speed and SRAM AXS 12-speed models. Featuring a go/no-go gauge for 0.5%, 0.75%, and 1.0% wear, it ensures timely chain replacement to protect your drivetrain. Made in the USA with durable materials, this lightweight tool is a must-have for serious cyclists aiming to maximize performance and longevity.







| ASIN | B0DNN5FSSH |
| Best Sellers Rank | #9,173 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #13 in Bike Shop Tools |
| Brand | Park Tool |
| Brand Name | Park Tool |
| Customer Reviews | 4.8 out of 5 stars 307 Reviews |
| Included Components | Chain Tools |
| Item Dimensions | 11.51 x 0.23 x 3.35 inches |
| Item Weight | 70 Grams |
| Item dimensions L x W x H | 11.51 x 0.23 x 3.35 inches |
| Manufacturer | Park Tool |
| Material | Multi |
| Material Type | Multi |
| Model | QKCC42 |
| Number of Items | 1 |
| Part Number | CC-4.2 |
| UPC | 763477001573 |
| Unit Count | 1.0 Count |
| Warranty Description | Limited Lifetime Warranty - see parktool.com/warranty |
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