![Amazon.com : Aongch 12-Notch Bottom Bracket Removal Tool, BBT-79 46mm Centerlock Tool, Compatible with SRAM Dub Race Face Cinch Rotor BSA30 Zipp Vuma Hawk Racing BB3086 : Sports & Outdoors Amazon.com : Aongch 12-Notch Bottom Bracket Removal Tool, BBT-79 46mm Centerlock Tool, Compatible with SRAM Dub Race Face Cinch Rotor BSA30 Zipp Vuma Hawk Racing BB3086 : Sports & Outdoors](https://m.media-amazon.com/images/I/71IURz++dlL._AC_UF1000,1000_QL80_.jpg)
Amazon.com : Aongch 12-Notch Bottom Bracket Removal Tool, BBT-79 46mm Centerlock Tool, Compatible with SRAM Dub Race Face Cinch Rotor BSA30 Zipp Vuma Hawk Racing BB3086 : Sports & Outdoors
![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
![Bike Center Lockring Tool Durable Compact Centerlock Lock Disc Stable Centerlock Hubs Rotor Adapter Repairing Tool - AliExpress Bike Center Lockring Tool Durable Compact Centerlock Lock Disc Stable Centerlock Hubs Rotor Adapter Repairing Tool - AliExpress](https://ae01.alicdn.com/kf/S21f3dd22640c43c185689d389c9c5e7c3/Bike-Center-Lockring-Tool-Durable-Compact-Centerlock-Lock-Disc-Stable-Centerlock-Hubs-Rotor-Adapter-Repairing-Tool.jpg)