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I didn't give it 5 stars because it is designed to better fit a steel bike frame which has thinner tubes than a typical carbon bike. This is due to the smaller external diameter of the BB which leaves some of the aluminum face of my carbon bike shell exposed. Everything else is the same. Fits standard threads and 24 mm axles. There is an adapter included so it can installed with a standard BB tool. Spins smooth and free which only improves after a short break in period. Dependable Dura ace quality I have paired with an Ultegra 6700 10 speed crankset on my carbon bike.
Verified purchase: Yes | Condition: New
This bottom bracket was easy to installed once my friend Jeff at CC Cyclery pointed out to me the fact that the plastic insert included in with the bottom bracket is AN ADAPTER so the BB can be installed with the existing hollowtech BB tool. The adapter fits in snugly to the tool and assures that you torque the bottom bracket properly.
Verified purchase: Yes | Condition: New
Easy to install. Comes with the correct adaptor to permit use of old style tool. Comes pre lock-tighted. Smaller and lighter than the older versions. Hopefully will last as long or longer.
Verified purchase: Yes | Condition: New
Do your bike and your cranks some justice and use the best BB Shimano has to offer!
Verified purchase: Yes | Condition: New
Luckily the wrench I ordered came with an adapter for the smaller size , which this is .
Verified purchase: Yes | Condition: New
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