![MEROCA Bike 12-speed Disc Brake Rotor Removal Tool ME-FC41 for Shimano M7100/M8100/M9100 Iamok Bicycle Parts - AliExpress MEROCA Bike 12-speed Disc Brake Rotor Removal Tool ME-FC41 for Shimano M7100/M8100/M9100 Iamok Bicycle Parts - AliExpress](https://ae01.alicdn.com/kf/S9cb8dfabfc124159b8b1bd6af4f25c4fi.jpg_640x640Q90.jpg_.webp)
MEROCA Bike 12-speed Disc Brake Rotor Removal Tool ME-FC41 for Shimano M7100/M8100/M9100 Iamok Bicycle Parts - AliExpress
![Park Tool BBT-69.4 16-Notch Bottom Bracket/Lockring Tool Fits Shimano, SRAM, Chris King, Campagnolo, etc. Park Tool BBT-69.4 16-Notch Bottom Bracket/Lockring Tool Fits Shimano, SRAM, Chris King, Campagnolo, etc.](https://www.gosupps.com/media/catalog/product/cache/25/image/1500x/040ec09b1e35df139433887a97daa66f/8/1/81M1kxdZfAL._AC_SL1500_.jpg)
Park Tool BBT-69.4 16-Notch Bottom Bracket/Lockring Tool Fits Shimano, SRAM, Chris King, Campagnolo, etc.
![New to centerlock disc brakes. The tool does not fit over the rear hub axle nut. What am I doing wrong? Do I need the externally serrated lock ring? The rotor is New to centerlock disc brakes. The tool does not fit over the rear hub axle nut. What am I doing wrong? Do I need the externally serrated lock ring? The rotor is](https://preview.redd.it/new-to-centerlock-disc-brakes-the-tool-does-not-fit-over-v0-h2kn2jex14ia1.jpg?width=640&crop=smart&auto=webp&s=32cb61f0b1581307f625ce52f1354c4651f8c00d)
New to centerlock disc brakes. The tool does not fit over the rear hub axle nut. What am I doing wrong? Do I need the externally serrated lock ring? The rotor is
![MEROCA Bike 12-speed Disc Brake Rotor Removal Tool ME-FC41 for Shimano M7100/M8100/M9100 Iamok Bicycle Parts MEROCA Bike 12-speed Disc Brake Rotor Removal Tool ME-FC41 for Shimano M7100/M8100/M9100 Iamok Bicycle Parts](https://ae01.alicdn.com/kf/S18d69c695f72469d9bb47939dd746634Q/MEROCA-Bike-12-speed-Disc-Brake-Rotor-Removal-Tool-ME-FC41-for-Shimano-M7100-M8100-M9100.jpg)