Park Tool CC-2 Chain Wear Indicator Protection 6/6Ski touring

6/6Ski touring

pre-tensioned encased elastic

Custom Fit - More precise than holes

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

again and again

Park Tool CC-2 Chain Wear Indicator Protection 6/6Ski touringQuickly 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