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Clydesdales/Athenas (200+ lb / 91+ kg) Looking to lose that spare tire? Ideal weight 200+? Frustrated being a large cyclist in a sport geared for the ultra-light? Learn about the bikes and parts that can take the abuse of a heavier cyclist, how to keep your body going while losing the weight, and get support from others who've been successful.

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Old 02-24-09, 01:41 AM   #1
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Need help fitting a bike.

So I tend to ride bikes on the larger side (61cm & 63.5cm frames at the moment, the 63.5 is a little big), and I'm wondering what the smallest size bike I could reasonably comfortably ride would be. 6'2" / 30" inseam / 34" standover height.

I want to get a loaner bike that I can let friends borrow for rides (since most of them won't fit a 61cm frame), but I don't want to have a bike sitting around that I can't ride on occasion without looking like the bicycle version of this guy:

Any suggestions for how small I can go?
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Old 02-24-09, 04:48 AM   #2
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I'd get a 61cm frame for you, and get a really short stemp and lower the seat for when friends come over. If anyone should be uncomfortable it should be the ones borrowing the bike, at least that is what i expect when i ride something that is not mine.
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Old 02-24-09, 09:10 AM   #3
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I am 6'2" with a 31/32" inseam (jeans, sorry i dont know the exact biking inseam). i ride a 2005 Trek 1200 that is a 56cm frame which is definately on the low end of our comfort range. ideally, i should be on a 58cm but the deal was too good to pass up. my stem is at a 45 degree angle and that helps with my reach a bit.

It would seem that you riding a 63cm frame would be enormous to the point where you couldn't even reach the ground. doesn't seem that safe.

hope this helps
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Old 02-24-09, 11:26 AM   #4
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you need to make sure your comparisons are apples-to-apples, so I'd focus on the TT length rather than the frame size, because there's huge variability out there.

I ride a Kona Kapu, it's a 58 (or a 59), and the TT is 59 and change. My buddy, who is a little taller than me, rides a Madone which is a 60...and his TT is shorter than mine.

That said, based on your proportions -- I'd say you could go 58 in a traditional fit with no real issues.
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Old 02-24-09, 01:26 PM   #5
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What changes are you willing to make to adapt the bike to yourself, or your guests?

I would say that I'm close to average-sized (5'9" in socks, with a 32" inseam). I own two road bike frames that fit well: a 56cm with "traditional" geometry (= horizontal top tube) and a 54cm with "compact" geometry (= sloping top tube). A 56cm compact frame is ridable, but doesn't feel quite right. Haven't tried a frame with a horizontal top tube recently, but the last time I did standover height was a bit of an issue on 58cm frames.

In order to accommodate both yourself and your guests, you might think about swapping stems and seatposts. No-name stems and seat posts are pretty cheap... Shorter folks would use a shorter stem and maybe a zero-offset seatpost. You would use a longer stem, perhaps combined with a setback seatpost. You could also leave the fork a bit long and move spacers above/below the stem as necessary. All of these changes can be done with 4 and 5mm allen wrenches in the space of a few minutes.
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