Park Tool LRT-4 Shimano Direct Mount Chainring Lockring Tool

Fits lockrings with 41 mm outside diameter and 16 notches including: Shimano® XTR® 9120 Shimano® XT® 8120 Shimano® MT900 Other Shimano® direct mount systems Features a 36 mm hex fitting for use with the Park Tool TWB-36 Crow Foot and a torque wrench Precisely CNC-machined from 6061 aluminum for a perfect fit and to prevent marring expensive parts, with a machined flat face for optimal lockring engagement. Precisely machined for a perfect fit, the LRT-4 removes and installs lockrings found on many Shimano® direct-mount chainring systems.