Lockring Tool — Shimano Direct Mount

HomepageMenuSearch Home / Tools / Crank & Bottom Bracket / Lockring Tool — Shimano® Direct Mount Park Tool's LRT-4 Lockring Tool Shimano® Direct Mount on it's side, click to enlarge Item # LRT-4 / Tools / Crank & Bottom Bracket Lockring Tool — Shimano® Direct Mount (12 Reviews)|Questions & Answers (6) Precisely machined for a perfect fit, the LRT-4 removes and installs lockrings found on many Shimano® direct-mount chainring systems. Features a 36 mm hex fitting for use with the Park Tool TWB-36 Crow Foot and a torque wrench (each available separately) to achieve proper torque. 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. View Product Details Find it Locally Find it Online Product Details FeaturesRelated ArticlesParts & Accessories LRT-4 Features Fits lockrings with 41 mm outside diameter and 16 notches including: Shimano® XTR® 9120 Shimano® XT® 8120 Shimano® MT900 Other Shimano® direct mount systems LRT-4 Lockring Tool - Shimano® Direct Mount You May Also Like TWB-36 36 mm Crow Foot BBT-10.2 Adjusting Cap Tool LRT-3 Lockring Tool Q&A 5 Questions & answers Ask a Question Question asked by Bill G Does the LRT-4 work on the Shimano FH-TX525 hub locknut? This locknut has a diameter of approximately 44mm. If not is there another tool available? This tool should not work on anything that has to do with a hub. Im guessing you are speaking about the rotor lockring. Those are 44mm x 16 notches, making the BBT-9 and BBT-69.4 the best tools for the job. If you are referring to a different locknut please send an image to tech@parktool.com Answered by Park Tool Question asked by Erin Will this work with the Shimano EP-600 / EP-801 ebike motor? The LRT-4 will work on for that lockring. So will the LRT-5. Answered by Park Tool Question asked by Julia Will this tool work with Shimano XT M8100 cranks? This tool will work to remove and install the lock ring found on M8100 cranks. Answered by Park Tool Question asked by Maciek Hi Does this key fit shimano e6001 ebike? bestregards The LRT-4 will not work on the STEPS E6001 motor. The correct tool is the BBT-49.3 which has a smaller diameter pattern than the LRT-4. Answered by Park Tool Question asked by Michael I have a Shimano bb52 .73 mm...what tool do I need for this..thanks The BBT-69.4 is the correct tool for that bottom bracket. If out of stock on our website please click "find it online" to see which one of our online retail partners may have it in stock. Answered by Park Tool Reviews 4.83 Based on 12 reviews Did this product meet your expectations? Didn't meet expectations Met expectations Exceeded expectations Write Review Sort Search: Search Product Reviews M Verified Customer Michael Bellingham, US Mechanical Experience: Beginner Expert Perfect fit Able to unlock remove and replace my shimano from chain ring. Easy with the correct tools. Would you recommend this product? Yes Did this product meet your expectations? Didn't meet expectations Met expectations Exceeded expectations Was this review helpful? YesReport 3 months ago J Verified Customer Jeff Lawrence, US Mechanical Experience: Beginner Expert Works great on Shimano XTR crankset The fit is spot on with the Shimano FC-M9220 XTR Enduro crankset. Makes changing out chainrings a breeze. The Park Tool TWB-36 Crow Foot wrench in combination with this lockring tool makes setting the proper torque a breeze. Would you recommend this product? Yes Did this product meet your expectations? Didn't meet expectations Met expectations Exceeded expectations Was this review helpful? YesReport 9 months ago TG Tim G "" Mechanical Experience: Beginner Expert I had to use a... I had to use a file to remove a small lip on the internal hole that stopped it from sliding past the splines. When I did the tool worked perfectly. Would you recommend this product? 1 Did this product meet your expectations? Didn't meet expectations Met expectations Exceeded expectations Was this review helpful? YesReport 3 years ago BD Verified Customer Bill D "" Mechanical Experience: Beginner Expert Works great!... Works great! Did this product meet your expectations? Didn't meet expectations Met expectations Exceeded expectations Was this review helpful? YesReport 4 years ago JZ Verified Customer John Z "" Mechanical Experience: Beginner Expert Does what it is supposed... Does what it is supposed to Would you recommend this product? 1 Did this product meet your expectations? Didn't meet expectations Met expectations Exceeded expectations Was this review helpful? YesReport 4 years ago 1 2 3 New content loaded Leads to www.parktool.com's company reviews page on REVIEWS.io. Back To Top Products New Products Tools Repair Stands Park Tool Gear Catalogs Education Repair Help Park Tool School Shop Talk Wheel Tension App Support Product Documentation Replacement Parts Warranty Services Company About Us Advocacy Sponsorship News Contact Us Trade Resources Newsletter Signup Park Tool on YouTube Park Tool on Instagram Park Tool on Facebook Park Tool on TikTok Privacy Policy | Terms of Use | Do Not Sell or Share My Info | Patents and Trademarks | Safety Data Sheets © 2015–2026 Park Tool Co. PARK TOOL® and the color BLUE are registered trademarks of Park Tool Co. All other referenced trademarks and trademark registrations are the property of their respective owners. Select Language​▼