Designed and built to remove and install the direct mount chainring lockrings that use 47-48mm outside diameter and 4 or 8 notches.
Don't be a fool, go with Park Tool When you need a lockring tool for all the rest, Park Tool has got it covered. Product details For lockrings with 47–48mm outside diameter and 4 or 8 notches 36mm hex drive to be used with Park Tool TWB-36 Crow Foot and a torque wrench to properly measure torque Constructed of 4140 heat-treated steel and plated for long life
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