Joined: Jun 2005
Posts: 9,625
Likes: 40
From: South of Raleigh, North of New Hill, East of Harris Lake, NC
Bikes: Specialized Tarmac, Specialized Roubaix, Giant OCR-C, Specialized Stumpjumper FSR, Stumpjumper Comp, 88 & 92Nishiki Ariel, 87 Centurion Ironman, 92 Paramount, 84 Nishiki Medalist
That bike is a relaxed geometry bike. As an example, I'm 5'9" and ride a "medium" Giant OCR-C which also has a substantially relaxed geometry. The actual seat tube measurement of the "Medium" Giant is 50cm and a perfect fit. But if I try to ride a standard frame with a 50cm seat tube, it would be too small. Given the sizing chart from BD, I'd recommend that you buy the small, 46 cm frame that BD recommends for you.
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