Park Tool CC-2 Chain Wear Indicator Protection pre-tensioned encased elastic

pre-tensioned encased elastic

Highly water-repellent

Fleece Pro Glove – a reliable glove to prevent cold hands

A battery life indicator on the dog device lets you know when to recharge the system

The tail clip sits flush

Park Tool CC-2 Chain Wear Indicator Protection pre-tensioned encased elasticQuickly and accurately determine the wear and stretch of any chain. Compatible with all bicycle chains For modern 9 and 10 speed chains, replace chain at or just before the 0. 75% readings For 11 speed chains, replace at or just before the 0. 5% reading Insert the Chain Checker's pins into two links, press the swing arm gauge tight, and check the gauge window for an accurate reading