Park Tool CC-4.2 Chain Checker Tool MFPN=86.2706.114.116 }Sidi Algor Cycling Boot -

}Sidi Algor Cycling Boot - Black/Black 46

6 Defined Color Black Color Black Material Alloy Length 50 Bar Clamp Diameter (mm) 35

3mm rotor thickness allows for more precise tolerance and keeps it running true

25 Bearing Type Sealed Cartridge Weight 295 Center to Flange Right 20

Park Tool CC-4.2 Chain Checker Tool MFPN=86.2706.114.116 }Sidi Algor Cycling Boot -Park 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