Park Tool Chain Checker CC-2 Size:NONE Tough 1mm wall thickness for

Tough 1mm wall thickness for compatibility with a wide range of applications

Construction

DAYBLAZER 400 Front Light

3D Nylon Airmesh

Park Tool Chain Checker CC-2 Size:NONE Tough 1mm wall thickness forA 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. Now you can quickly and accurately determine the wear (or "stretch") of nearly any bike chain with the CC 2 Chain Checker. Simply insert the Chain Checker's pins into two links, lightly press the swing