Originally Posted by magohn

I am 6'0" and my LBS had a 56 and 58 Robaix in stock when I was looking last week. I mentioned I thought a 58 would be more my size. However, he insisted the 56 was the way to go and boy was he correct. I have been riding the 56 for almost a week now and the fit is just awesome. The relaxed geometry of the Roubaix also allows a larger rider to ride a smaller frame. This is ideal for me because at 305lbs, when I tried a 58 my arm/wrists would go numb because of the extra stretch. The 56 is more compact for me and "forces" my elbows to slightly kink and not lock out. i rode the bike yesterday for 20 miles - I loved it. it was only 8 weeks ago I was gasping on a 1 mile loop.