Park Tool CC-4 Chain Wear Indicator Apparel_Men's Tri Top Wind-Tunnel Tested

Wind-Tunnel Tested

formerly known as Aeropex

Make every effort count with the SPEEDPLAY standard tension road cleat

Weight: 304

Park Tool CC-4 Chain Wear Indicator Apparel_Men's Tri Top Wind-Tunnel TestedThe Park Tool CC 4 Chain Checker is a drop in style gauge that measures bicycle chain wear. The laser cut CC 4 accurately measures a long section of chain and strategically comes in contact with the chain in three places, quickly and easily taking the guesswork out of determining when chain replacement is necessary. The tool works on any 5 to 12 speed derailleur chain (including SRAM T Type, SRAM Flattop, and Shimano XTR 12 speed chains) and is