Park Tool BBT-47-12 Bottom Bracket Tool - 12-Notch BX PSI the sweet spot in between

the sweet spot in between for technical climbs where you need propulsion but also comfort

Heavy cordura musette with adjustable shoulder straps and cross closure system

Finally we chose the hooked rim option to allow for more versatility in tyre choices

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Park Tool BBT-47-12 Bottom Bracket Tool - 12-Notch BX PSI the sweet spot in betweenA precision CNC machined aluminum tool for the installation and removal of select threaded bottom brackets with 12 notch tool fittings, including Chris King ThreadFit T47 and ThreadFit 30 bottom brackets. Manufactured in house by Park Tool, anodized for easy identification and featuring a ratchet torque wrench compatible 3 8" drive. Specifications Fits 12 notch threaded bottom bracket tool fittings with a major diameter (outside of notches) of 5053 mm