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Road Bike Sizing(3 posts)

Road Bike SizingM4 Lou
Jul 15, 2001 5:03 PM
Im 6'1 1/2 and have a 34 inch inseam. Im wondering what road bike would fit me. I think i kinda fall in between 58 and 60. I have a 60cm Specialized M4 which i have ridden for a year now, but the seatpost isnt very far out (about 4in). However, i rode a 58 in france last week and it felt cramped in the in the arms and a bit in the legs with the seat post very far out. So what do i do. I ride a 19.5 mtb with the seatpost pretty far out and it works well, but i like it small for control. I dont apply the same control rules to mtbs though. So any thoughts would be more than appreciated
58, 59, or 60 should workmike mcmahon
Jul 15, 2001 5:10 PM
If the 60 isn't causing you any problems, why worry about it? Even if you have only 4" of seatpost showing, you may be on the right size bike if you can achieve the proper upper body fit, including reach and handlebar drop. FWIW, I'm about the same size as you, and I'm on a 58.5 c-c seat tube and 58.5 top tube. I bought a custom frame and it fits perfectly. However, your measurements don't sound out of the ordinary so you should be able to find an off-the-peg frame that fits.
re: Road Bike SizingG
Jul 16, 2001 5:30 AM
You never really know about fit until you ride a bike. That being said, I have the same inseam as you, but a little shorter in height. I ride a 58c-t-c frame with a 58cm top tube. If you were to measure it center to top it would come to about 59.5cm. I would not worry about only having 4in of seatpost showing. I have a little over 4in showing and have always been of the opinion that anywhere between 4-6 inches is fine. I think in this day of compact frames and smaller frame sizing we get used to seeing more seatpost showing, and a perfectly acceptable 4in of seatpost looks too short. I have become a convert of the "Rivendell method" of sizing which advocates larger frames for comfort. Check out their website. Ride some different sizes and brands because manufacturers don't size their bikes the same. Good luck.