Park Tool LRT-4 Chainring Lockring Tool For Shimano Direct Mount Cranks

Specs and Features: 

• Machined flat face for optimal lockring engagement
• For lockrings with 41mm outside diameter and 16 notches
• 36mm hex drive to be used with Park Tool TWB-36 Crow Foot and a torque wrench to properly measure torque
• 6061 aluminum construction

Designed and built to remove and install Shimano® direct mount chainring lockrings found on XTR® 9120, XT® 8120, MT900, and other Shimano® direct mount systems. Precisely CNC machined from 6061 aluminum for a perfect fit and to prevent marring expensive parts.