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  • Shimano 7900 Dura-Ace Bottom Bracket
  • Shimano 7900 Dura-Ace Bottom Bracket

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Shimano Dura-Ace 7900 Bottom Bracket Cups

  • Wider bearing spacing for greater stability.
  • Improved seal design for BB adaptor, providing smoother rotation and longer durability.
  • English and Italian threads available.
  • Weight: 100g (70mm)

Buy Shimano Dura-Ace 7900 Bottom Bracket Cups from Chain Reaction Cycles, the world's largest online bicycle store.

Rated 5 out of 5 by 4 reviewers.
Rated 5 out of 5 by Nice product Item received with excellent packaging...go for Dura ace no regrets! Peace! 30 October 2013
Rated 5 out of 5 by Is it possible that this 68mm, bottom bracket will fit my z6 20 June 2013
Rated 5 out of 5 by 1st Class Absolutely top of range BB. Purchased this with Dura Ace cranks & i believe that you cannot buy better quality. Absolutely 1st class service from Chain Reaction & price is unmatched. 06 May 2013
Rated 5 out of 5 by BRILLIANT This BB is a piece of art, stiff, easy to install and very smooth, for the price you could not get any better, if you want a better BB then go for a hope set up but you will pay 3 times the price.... 05 March 2013
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3 Questions : 3 Answers

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A Trek Domane 6 Series Frameset is BB90 PF i assumed...
Age: 45 to 54
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4 months, 1 week ago
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Answer: 
The bottom bracket you require is a Trek specific product. You will have to source this from your local Trek authorised dealer.
4 months, 1 week ago
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Size?

I wonder if I need this to go with the Dura Ace 7950 crankset I'm thinking of buying?

I have a Cannondale Synapse 2008 model Dura Ace Compact 10 speed. The existing crankset is an FSA (Cannodale) si compact carbon.

And .... Would I need the "English 68mm" option?
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Answer: 
From the information stated online it would appear that your frame uses a BB30 bottom bracket. Therefore this bottom bracket is not suitable.

If you drop and email to our tech team they will be happy to advise you on the correct bottom bracket.
http://www.chainreactioncycles.com/...
3 months, 3 weeks ago
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Does it include bearings?

the ones i need is 6805RD wich was in the crankset originally.
Age: 18 to 24
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3 months, 3 weeks ago
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Answer: 
Yes, the Hollowtech II bottom bracket systems are supplied with the 6805 bearings pre-fitted and sealed into the cups.
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3 months, 2 weeks ago
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