Park Tool LRT-4 Shimano Direct Mount Direct Mount Lockring Tool, 3/8″
Machined flat face for optimal lockring engagement
36mm hex drive to be used with Park Tool TWB-36 Crow Foot and a torque wrench to properly measure torque (TWB-36 Crow Foot and a torque wrench sold separately in our store)
For lockrings with 41mm outside diameter with 16 notches
Model: LRT Chainring Lockring Tool
6061 aluminum construction
Manufacturer Part Number: LRT-4
UPC: 763477006905