Item # BBT-19.2
/ Tools / Crank & Bottom Bracket / E-BikeBottom Bracket Tool — 16-Notch 44 mm OD
Bottom brackets occasionally require removal for service, replacement, or upgrading. The Park Tool BBT-19.2 is compatible with some bottom brackets that feature a 16-notch tool fitting, including most Shimano® models with outboard bearings. Constructed from high-precision hardened chromoly steel, and can be driven using a wrench, socket, or 3/8" drive wrench.
BBT-19.2 Features
Fits 16-notch threaded bottom bracket tool fittings with a 44-45 mm major diameter (outside of notches) and 42.7 mm minor diameter (inside of notches), including:
- Shimano® BB80, BB5700, XT BB70, BB51, and previous external bearing threaded cups
- Campagnolo®
- SRAM®/Truvativ® GXP
- Chris King®
- FSA MegaExo®
- Hope®
- Race Face® X-type
- Surly®
- Wheels Manufacturing™
- Fulcrum®
Also fits 16-notch Bafang® BBSH, BBS02 mid-drive e-bike motor lockrings.
Features a 3/8" drive fitting and 1" wrench flats
NOTE: due to the shallow engagement of their tool fittings, the BBT-19.2 is not recommended for 16-notch disc brake rotor lockrings. Instead use the Park Tool BBT-9 or BBT-69.4.
Not designed for use with impact drivers or other power tools.
Product Fitment
Below is a filterable table of bottom bracket models the BBT-19.2 is compatible with. For a full list of tool compatibility, see our Bottom Bracket Tool Finder.
| BBInfinite™ | Threaded | BSA Threaded |
| BBInfinite™ | Threaded | Italian Threaded |
| BBInfinite™ | Threaded | T47 External |
| Campagnolo® | Threaded | Ekar Pro-Tech™ BSA and Italian threading |
| Campagnolo® | Threaded | Ekar Pro-Tech™ T47 x 68 |
| Campagnolo® | Threaded | Power Torque™ |
| Campagnolo® | Threaded | Ultra-Torque® |
| CeramicSpeed® | Thread-Together | BB30 Shimano® and GXP® |
| CeramicSpeed® | Threaded | Campagnolo® Ultra-Torque® T47, BSA, and Italian |
| CeramicSpeed® | Threaded | Italian Threaded Shimano® and GXP® |
| CeramicSpeed® | Threaded | T47/68 Shimano®, GXP®, and Campagnolo® Ultra-Torque® |
| ELEVN Racing™ | Threaded | Euro Bottom Brackets |
| Enduro® | Thread-Together | BB30/30a TorqTite® GXP®, 24mm, and Campagnolo® Ultra-Torque® |
| Enduro® | Thread-Together | BB86/92 TorqTite® |
| Enduro® | Thread-Together | BBright™ TorqTite® 24mm |
| Enduro® | Threaded | BSA and Italian Threaded 24mm |
| Enduro® | Threaded | T47 External |
| e*thirteen® | Threaded | BSA 24mm |
| FSA® | Threaded | MegaExo® |
| Hambini™ | Threaded | BSA |
| Hawk Racing™ | Threaded | BSA |
| Hawk Racing™ | Threaded | Italian Threaded |
| Hope™ | Threaded | BSA 24 mm |
| IRD® | Threaded | ScramJet™ |
| Kogel™ | Threaded | BSA GXP® |
| Origin8® | Threaded | Torqlite™ Outboard |
| Phil Wood™ | Threaded | BSA Outboard |
| Praxis Works® | Threaded & Thread-Together | M24 |
| Praxis Works® | Threaded & Thread-Together | Shimano® |
| Profile Racing® | Threaded | Euro Outboard |
| Promax® | Threaded | Outboard |
| Race Face® | Threaded | BSA 24mm |
| Rotor® | Threaded | BSA GXP® |
| Rotor® | Threaded | BSA Shimano® |
| Rotor® | Threaded | T47 External 24mm |
| Samox® | Threaded | EB2401 and EB2402 |
| Shimano® | Threaded | All Other Outboard |
| SRAM® | Threaded | GXP® |
| SunRace® | Threaded | BB-497 |
| Suntour® | Threaded | BB-BKA008-C |
| Surly® | Threaded | O.D. |
| Token® | Thread-Together | BB841T-41 |
| Token® | Thread-Together | BB841T-42 |
| Token® | Thread-Together | BB841T-42A |
| Token® | Thread-Together | BB841T-46 |
| Token® | Thread-Together | BB841T-46A |
| Token® | Thread-Together | BB4124C |
| Token® | Thread-Together | BB4129QB |
| Token® | Thread-Together | BB4130QB |
| Token® | Threaded | T47R24 |
| Token® | Threaded | T47RGXP |
| Token® | Threaded | TK877 |
| Token® | Threaded | TK878 |
| Velo Orange® | Threaded | Threadless Repair |
| Wheels Mfg™ | Thread-Together | BB30 Outboard |
| Wheels Mfg™ | Thread-Together | BB30A |
| Wheels Mfg™ | Threaded | BSA Threaded GXP® and 24mm |
