A worn chain shifts poorly and places unnecessary wear on sprockets. The CC-4.2 is a go/no-go gauge that accurately indicates 0.5%, 0.75%, and 1.0% wear.
- Features permanent measurement markings
- Works on most chains, from 5 to 13-speed. Compatible with any 5 to 13-speed derailleur chain (including SRAM® T-Type, SRAM® Flattop™, Shimano® XTR® 12-speed, and Campagnolo® Ekar™ 13-speed chains) or single-speed chain
