CC-3.2 Chain Wear Indicator

The Park Tool CC-3.2 Chain Wear Indicator is a great tool to have on hand in your garage or workshop. Keep an eye on your chain because a worn bicycle chain can cause poor shifting and can also cause damage to your cassette and derailleur. Most bike component manufacturers recommend chain replacement at regular wear intervals. The Park Tool CC-3.2 is a go/no-go gauge designed to accurately indicate when a chain reaches 0.5% and 0.75% wear (or "stretch"), the points at which most chain manufacturers suggest replacement. The CC-3.2 is long, accurate, and features permanent measurement markings. The CC-3.2 works on most derailleur chains* from 5 to 12-speed.

Features

• 5-to-10-speed chains: replace chain at or just before 0.75%
• 11-to-12-speed chains*: replace at or just before 0.5%
• Check with manufacturer for specific replacement instructions

*Use the CC-4 for SRAM® Flattop™ and SRAM® T-Type 12-speed chains.