Park Tool - CC-2 Chain Checker Seatposts Schwalbe Aerothan and Pirelli PZero

Schwalbe Aerothan and Pirelli PZero

Standard 6806 retainer bearings

Opens and closes BBB BCH-08/09/10/11S SmartLink II chain closing links

If all that’s not enough

and 2 fixed nylon pins)

Park Tool - CC-2 Chain Checker Seatposts Schwalbe Aerothan and Pirelli PZeroPARK TOOL CC 2 CHAIN CHECKER A 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 Checkers pins into two