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Old 08-30-10 | 06:01 PM
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umd
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From: Santa Barbara, CA

Bikes: Specialized Tarmac SL2, Specialized Tarmac SL, Giant TCR Composite, Specialized StumpJumper Expert HT

Originally Posted by Inertianinja
I have seen AR1 built up with Red elsewhere in the internetz. How would it be done?
Red is available in a standard threaded BB or BB30. You can buy English or Italian threaded GXP external bearings.
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