Park Tool LRT-4 lockring tool – Shimano Direct Mount
Park Tool LRT-4 is a precise CNC-machined lockring tool for Shimano direct-mount chainrings, with a 36 mm hex for torque wrenches and 41 mm/16-notch lockrings.
Overview
Park Tool LRT-4 lockring tool – Shimano Direct Mount
The Park Tool LRT-4 is a precisely machined lockring tool designed for removing and installing lockrings on Shimano direct-mount chainring systems. Its accurate fit keeps the lockring securely engaged, reducing the risk of slipping and damage to components in both home and professional workshops.
The LRT-4 features a 36 mm hex profile for use with the Park Tool TWB-36 Crow Foot adapter and a torque wrench (each sold separately), allowing you to tighten lockrings to the manufacturer’s specified torque. CNC-machined from durable 6061 aluminum, it ensures a perfect fit while helping prevent scratching or marring of expensive cranks, chainrings and lockrings. The precisely machined flat face provides optimal engagement with the lockring.
- Purpose-built for removing and installing Shimano direct-mount chainring lockrings.
- Fits lockrings with 41 mm outside diameter and 16 notches.
- Compatible with Shimano XTR 9120, XT 8120, MT900 and many other Shimano direct-mount systems.
- 36 mm hex interface for use with the Park Tool TWB-36 Crow Foot and a torque wrench.
- CNC-machined from 6061 aluminum to protect high-end components from damage.
- Flat machined face ensures secure lockring engagement and smooth transfer of torque.
The LRT-4 is an essential addition to any tool kit servicing modern Shimano chainring systems, helping to ensure safe, reliable and correctly torqued assemblies.
