Park Tool CC-2 Chain Checker GSRD making it easy to find

making it easy to find a secure fit for every head shape

Rolls are 2m (enough for one-wheel)

or a gel nearby and secure at all times

Application on chain with factory lube:

The G27 is the G23’s little big brother

Park Tool CC-2 Chain Checker GSRD making it easy to findTo alleviate poor shifting and uneven drive train wear, manufacturers recommend chain replacement before rear cog replacement. Now you can quickly and accurately determine the wear and stretch of any chain with the Park Tool Chain Checker. Simply insert the Chain Checkers pins into two links, lightly press the swing arm gauge, and then check the gauge window for an accurate reading Specifications The CC 2 is compatible with most single speed and