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A Question about Shimano America Dura-Ace Bottom Bracket
By R.MARCUS2184164 (1) on April 22, 2008
DOUBLE OR TRIPLE?9 OR 10 SPEED?
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Answer to "DOUBLE OR TRIPLE?9 OR 10 SPEED?"
By teleman 
, Anonymous on June 11, 2008
It is designed for Dura-Ace cranks only, which are all double ring. 9 or 10 speed cassette is up to you.
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