I am 6'3 and have 32 inseam I ride a XL OCR Carbon...perfect fit but I agree you must try it to know for sure.
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2005 Giant OCR Composite3
2005 Trek 3700
2006 Flyte SRS-3 FINISHED!!!!!!!!!!!!!!!
2008 Gary Fisher X-Caliber 29er
.........that's how I Roll.