PARK TOOL CC-3.2 Chain Checker Gift card Complete your kit with the

Complete your kit with the new Essential Socks

Raw edge hems create a smooth transition from short to skin for a sleek

Crankset: Force E1 XPLR (170 mm) with Wolf Tooth 46T chainring

and blocks out damaging rays

Designed for and by gravel cyclists

PARK TOOL CC-3.2 Chain Checker Gift card Complete your kit with theA worn bicycle chain can cause poor shifting and in time can even cause excessive wear to the derailleur and rear cogs, causing a much more expensive problem. That's why 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.