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One more Q... 57cm frame OK for 5'9-10" rider? (nm)(11 posts)

One more Q... 57cm frame OK for 5'9-10" rider? (nm)yellowpearlz
Mar 2, 2003 6:37 PM
Reason I ask is:yellowpearlz
Mar 2, 2003 6:46 PM
I'm sorry for the non-descript questions, but I'm really pressed for time, and I don't have a cahnce to get fitted on a frame at my LBS to see. I'm currently riding a Medium Giant TCR (compact) frame so I'm not sure what traditional size would fit me...

~mdh
Reason I ask is:geeker
Mar 2, 2003 6:57 PM
How is 57 measured? C-to-c, c-to-top of top tube, c-to-top of seat tube collar? Probably more important (provided you have standover clearance) is top tube length. What's the "effective top tube length" (horizontally measured equivalent) of your Giant? Compare it with the top tube length of your 57. Also consider the seat tube angle. If the st angle of the 57 is steeper than that of the Giant, you'll have to adjust the tt length of the 57 (roughly 1 cm longer per 1 degree steeper, shorter if slacker). I'd go with the traditional frame that matches effective top tube length, but check to make sure you have standover clearance.
Should fit you fineNASA Noddler
Mar 2, 2003 6:51 PM
Assuming you have a somewhat average ratio of leg length to torso length then you should fit fine. I have a 58" Vortex that fits my body 6'0' well. I have a 32 inseam.
reason to checkRJF
Mar 3, 2003 7:43 AM
According to Litespeed's website, they no longer make a 58 Vortex, but judging by their sizing it would probably have a 57cm TT.

I'm also 6 feet and a 57cm TT is too stetched out for me.

You should be pretty sure about what sizing you need before buying a bike you've never tried on.
Be carefulGregJ
Mar 2, 2003 10:35 PM
Depending on how this frame is measured and your leg length, I think this may be too large for you. Go to the Colorado Cyclist website and do a little research and measuring.
re: One more Q... 57cm frame OK for 5'9-10" rider? (nm)al0
Mar 3, 2003 4:52 AM
There is not so bad frame fit calculator on
http://www.wrenchscience.com/WS1/default.asp.
CC, WS calculators not comprehensivegeeker
Mar 3, 2003 5:30 AM
They're convenient, but AFAIK don't consider seat tube angle (related to rider femur length). So the numbers are only ballpark.
I am 6' and I would never consider anything other than 56cm. nmonespeed
Mar 3, 2003 9:23 AM
re: One more Q... 57cm frame OK for 5'9-10" rider? (nm)Sharkman
Mar 3, 2003 9:27 AM
Be careful with that. I am also 5'9.5", and about 11 years ago, when I first got into road cycling and did not know what I was doing, bought a 58cm Klein bike. It's definitely too big for me, and has been relegated to duty on my indoor trainer.

My other two bikes are 54cm and 55cm, respectively, for a Landshark and a Cervelo. Both fit much better than the Klein. It will all depend on the top tube length, the seat tube angle, etc. It also depends on your personal relative body proportions. Although we are the same height, you might have longer legs and a shorter torso, and vice versa.

But my guess would be that a 57 will be on the large size. At best, you'll wind up doing a lot of stem and seatpost swapping to get it dialed in.

Good luck

Bob
I disagree...PsyDoc
Mar 3, 2003 9:56 AM
Perhaps the 57 could be on the large size, but depending on his body measurements a 57 could fit just fine. I am 5'-9" with a 84.5cm inseam and ride a 55.5cm c-to-c (57cm c-to-t) with a 56.5 toptube, 110mm stem and the bike fits fine. I can ride my current bike comfortably, while I became uncomfortable after 30 miles on my 54.2cm c-to-c (56cm c-to-top) bike.