Park Tool CC-4.2 Chain Checker Tool MPFN-ST17TURR3540X0RED 6-bolt/44mm-BCD International-Standard disc mounting dimensions

6-bolt/44mm-BCD International-Standard disc mounting dimensions

and Head Valve Tool Compatible with Pike C1+(2023+)

Topeak Bike Covers are designed to be used for storage protection only

Optional stitched leather sleeve is vegetable tanned and died with natural oils and waxes

Park Tool CC-4.2 Chain Checker Tool MPFN-ST17TURR3540X0RED 6-bolt/44mm-BCD International-Standard disc mounting dimensionsPark Tool CC 4. 2 Chain Checker Tool. A worn bicycle chain can cause poor shifting and expensive drivetrain damage. The Park Tool CC 4. 2 Chain Checker is a drop in gauge that measures chain wear accurately. It contacts the chain in three places eliminating guesswork. Compatible with 5 to 13 speed and single speed chains it indicates wear at 0. 5% 0. 75% and 1. 0% matching manufacturer replacement recommendations. Measures bicycle chain wear