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Long Torso and geometry

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Old 04-25-03 | 12:08 PM
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FOG
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Long Torso and geometry

I have a very long torso- I am 6'2" and my inseam is only 32, and my shirt sleeve length only 35. In the past I have accommodated by getting a frame (25") that I could not straddle, but which felt good once I was moving. What bikes fit well for builds like mine? Is there some desired angle between upper body and seat tube? Does the long torso mean that I need a smaller angle between upper and lower body because I move my center of gravity further forward than an everage cyclist when I lean at a given angle?

I would also bet that those with short torsos and longer limbs face the opposite issues.

What manufacturers use geometry I should look for, and which should I take pains to avoid?
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Old 04-25-03 | 01:30 PM
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I am 6'2" with a 32" inseam as well. I bought my first road bike since my Huffy 10 speed last summer. I had had a Trek 800 Sport so I had expected to get another Trek for the road. However, when I tried the Trek 1200 it didn't fit well. Felt uncomfortable even just riding around the LBS lot. This bike has a traditional geometry. I then tried the Specialized Allez A1 Sport with a 'compact' geometry. Perfect. Both frames were 58 cm.

Some folks on the forum think compact geometry is a ploy to save money, but it helped me get a perfect fit.

Hope this helps...
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Old 04-25-03 | 03:42 PM
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Lemond is universally known for fitting torsos such as your and mine. They are designed with a long top tube.
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Old 04-25-03 | 04:23 PM
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This is the very reason I want a Lemond bike, not to mention steel! I have a Trek 2000 that I have put a seat post on with no setback to move my knees into a comfortable posistion. In turn I have a longer than usual stem to get me streched out like I want, all the while on a frame that I can just barly clear on a level road when I step off!

I only wish I had known the difference before buying the Trek because I would be riding a Lemond now!
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Old 04-25-03 | 06:12 PM
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why the post w/o setback?
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Old 04-25-03 | 07:08 PM
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Let's see, The fit kit indicated I needed a 54cm bike, but because of my reach I needed at least a 56cm tt so we went with a 56cm frame. I think the combonation of little larger frame and saddle with short rails I couldn't get quite where I wanted over the peddals. So to get a comfortable fit I probly moved the saddle forward 2cm or so along with the stem. Don't get me wrong, the bike now rides fine, I have no pain, and did a metric century on it Tuesday.
I found the information on the Lemond bike geo. a few weeks ago and I think this would have been a glove fit for me. I also notice the Lemond bikes come with a little longer cranks for given size than a Trek does. Why is this. I ride mtb with 175 and do fine with this, the rb is 170mm.
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Old 04-26-03 | 07:05 AM
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A compact frame in larger than normal size would give you a long bike with low standover. Giant provide a variety of stems and seatposts to fit.
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Old 04-26-03 | 05:18 PM
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I wonder about a LeMond for long torso/short legs. This is pure speculation, since I'm no expert on bike fit, and fairly normal in terms of leg/torso lengths.

I'd speculate you want a longer top tube for sure, but not necessarily a laid back geometry. LeMond had long femurs, which would possibly be a factor in him recommending a laid back seat tube angle (like 72-ish degrees) and lots of saddle set-back. (In the hey-day of his popularity, the hot ticket in US bikes was criterium geometry, just the opposite of his preference.) I'm thinking you'd want a long top tube, but more like a 73 degree seat tube angle so you wouldn't have to be reaching way forward with your legs. Short of getting a custom frame, I'd tend to concur with others in that a compact geometry may be the ticket. You get a low stand-over height, and probably more options in stem length, since this is one way they accomodate having less frame size options.
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Old 04-26-03 | 11:33 PM
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Reynolds steel Lemond seat tube angle, TADA 73 deg!
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Old 04-27-03 | 05:39 AM
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Originally posted by uciflylow
Reynolds steel Lemond seat tube angle, TADA 73 deg!
Busted!
That's what I get for posting w/out checking the specs first. The bigger the frame, the slacker the seat angle (seems like a good thing to me). And, yes, the 55cm frame SA is 73.
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Old 04-28-03 | 09:01 PM
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Unless my thinking is wrong, and I could be, I think this setup would have prevented some of the rather weird things I have had to do to my frame to get it to ride like I want.
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