Shimano TL-CN42 Chain Wear Indicator Tool Images Uploaded - Ready for Review or even to the bar

or even to the bar clamp if you've lost your original shifter bar clamp somewhere

Perfected by DEITY's extensive Real World Testing for over 12 months

while still leaving room for knee pads

For 2x crank conversions

Shimano TL-CN42 Chain Wear Indicator Tool Images Uploaded - Ready for Review or even to the barThe Shimano TL CN42 Chain Wear Indicator Tool is a must have in your tool box. This tool is easy to use and understand so there'll be no question when your chain is due for replacement. Who's this item for: Workshop mechanics and home enthusiasts. Chain compatibility: This will work with 7 12 speed chains. How does it work: There are pictograph instruction on the side of the TL CN42. The two steps are as follows: Drop the 'split section' labeled with