Park tool Park Tool BBT-59.3 41–42 Mm Shimano Ultegra BBR60 / Shimano Deore XT MT-800 Bottom Bracket Cup Extractor One Size Silver

Capable of fitting 16-notch threaded bottom brackets with a major diameter (outside of notches) of 41-42mm and a minor diameter (inside of notches) of 39mm, including: -Shimano Ultegra BBR60 -Shimano Deore XT MT.

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