The Park BBT-49.2 Bottom Bracket Tool fits bottom brackets with a 39mm OD and 16 notches, like Shimano XTR BB93 and Dura Ace BB9000. Park Tool updated the BBT-49 to the BBT-49.2 with additional depth to fit over Shimano STEPS square drive motors.
For 39mm OD 16 notch bottom brackets
Fits Shimano XTR BB93 and Dura Ace BB9000
Compatible with Shimano STEPS square drive motors
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