PARK TOOL CC-3.2 Chain Checker Gift card and to a special treatment

and to a special treatment that guarantees high-level smoothness and precision shifting

Designed for and by gravel cyclists

and blocks out damaging rays

so there’s total retention even on bumpy roads

Includes mount and two fitting shims

PARK TOOL CC-3.2 Chain Checker Gift card and to a special treatmentA 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.