Park Tool BBT-47 Bottom Bracket Tool - 12 Notch

Specs

Drive: 3/8-inch, ratchet and torque wrench compatible

Notch Count: 12-notch

Compatible Standards: BBInfinite T47, Chris King ThreadFit T47, Chris King ThreadFit 30, Enduro BBRight Torqtite, Hambini T47, Rotor T47 External 30mm, Rotor BBright, BB30, BB386EVO, PF30 thread-together

Optional Accessory: Park Tool BBT-RS Bottom Bracket Tool Retaining System (sold separately)

FAQ

What is the difference between the BBT-47 and BBT-47-16?: The BBT-47 is a 12-notch tool and fits bottom brackets with a 12-notch interface. The BBT-47-16 is a 16-notch tool for a different set of T47 bottom bracket brands including CeramicSpeed, Kogel, White Industries, and SRAM T47 DUB. Confirm your BB's notch count before ordering.

Do I need a torque wrench with the BBT-47?: Using a torque wrench is strongly recommended. T47 bottom brackets have specific installation torque specs, and over-tightening can damage the frame threads or the BB cup. The 3/8-inch drive on the BBT-47 is compatible with most standard torque wrenches.

What is the BBT-RS retaining system and do I need it?: The Park Tool BBT-RS is an optional spring-based tension system that applies consistent pressure to keep the tool fully engaged with the BB notches during installation and removal, preventing slippage. It is particularly useful on stubborn or tightly installed bottom brackets.

Best For

Mechanics installing or removing 12-notch T47 bottom brackets on road, gravel, and performance bikes. The right tool for any T47-equipped frame from brands using the 12-notch interface, including BBInfinite, Chris King, Enduro, and Rotor.