Extremely light yet very smooth and solid. This is by far a superior bottom bracket compared to the other brackets from the same manufacturer such as the bb51 and bb52. It is far less likely to leak at the seals, and I notice there is a lot less angular rocking at the cranks due to the precision machining and the larger bearings.
Verified purchase: Yes | Condition: New
Not the best bb shimano have made
Verified purchase: Yes | Condition: New
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