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Good size?

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Old 12-08-08, 02:18 AM
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HasteTheMoment
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Good size?

Hey,
Ive searched but cannot seem to find this out, im 5'9''-5'10'' and was wondering what size bike to get. Should I get a 55cm or a 57cm.
Thanks
Nick
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Old 12-08-08, 02:25 AM
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bkowa092
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It really depends on your inseam. For what it's worth, I am 5'9 and ride a 54cm. If I could go back, I prob. would have bought a 52cm though. The 54cm is fine, but the standover is a bit snug. 57cm would be too big for you, unless you have freakishly long legs.
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Old 12-08-08, 02:27 AM
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Thetank
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It's gonna depend on what bike you're interested in buying and also there is more to measurements other than your height. Either get fitted by a bike shop or have someone give you a hand and do the online fit calculators like;

Wrenchscience.com
or http://www.competitivecyclist.com/za...LCULATOR_INTRO

Then apply what the calculators give you to whatever frame you're looking to buy.

Good luck
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Old 12-08-08, 06:22 AM
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europa
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There's more to it than your inseam too - how your ankles work affects the seat height, the length of your torso or arms affects the reach, how flexible/strong you are affects the bar position and the wrong sized frame may not allow you to set the bars in the right spot. The list goes on and that's assuming the other bloke has his bike set up the way you want yours

Should we really confuse him and talk about all the different ways of measuring the frame size? And how none of them have ever been 'standard' though some have been popular for a time?

The only way to tell is to ride the thing, set up as you'll be using it ... which can be problematic unfortunately so just do your best. At least sit on the brute.

What someone else rides is a useful starting point, but that's all. Sorry mate, there ain't no easy answers though if you're young, strong, fit and flexible you can usually get away with blue murder (as opposed to us old pharts who are weak, fat and stiff )

For what it's worth, I'm a six footer and ride tall frames for my height so I can't even suggest a starting point. Sorry.

Richard
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Old 12-08-08, 08:11 AM
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Adam G.
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It's all about top tube length.
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Old 12-08-08, 09:08 AM
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I don't know your body proportions, but I can tell you that I am about the same height as you and ride a 57cm. I would say though that of all the people I have met, I am MORE likely to prefer to ride a large bike and that most cyclists I know would prefer a more average size or small size. So based on the vast majority of people I have met who ride bikes, I would think the 55cm would be more to your liking.
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Old 12-08-08, 09:23 AM
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uke
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It completely depends on the bike. One bike's 55 is another's 57. Come back with a bike before asking this question.
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Old 12-08-08, 09:28 AM
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as has already been stated, overall height tells you very little (ok, nothing). think of it as the sum of leg length and torso length, and start by fitting those individually. loosely speaking, inseam determines seat tube and torso/arms determine top tube/stem. there's more too it, but from the sound of it, you're not looking for a sophisticated fit at this point.

my numbers are unusual, as i have a *very* long torso and equivalently short legs. height: 5'11", inseam 29". my custom frame is 52 ST/55 TT and i still run a 120mm stem. i have a vintage (stock) italian bike that is 54/54 and it's not a very good fit...too tall vertically and too short horizontally. check my sig for some pics of the bikes.
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Old 12-08-08, 09:30 AM
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HasteTheMoment
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kilo tt. I thought I would be smaller than a 57cm......im not that tall and average around 5'10ish''
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Old 12-15-08, 02:09 PM
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HasteTheMoment
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Inseam 31 in
Trunk 22 in
Forearm 13 in
Arm 24.5 in
Thigh 24 in
Lower Leg 17 in
Sternal Notch 55 in
Total Body Height 69 in

might have been confused on some of the measuring, but thats a base. Any idea what size bike this is. I have no clue on really picking out size. Im guessing maybe 53cm?
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Old 12-15-08, 02:14 PM
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devilshaircut
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It's pretty much a matter of opinion ... and whether or not you want a lot of seatpost.
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Old 12-15-08, 05:25 PM
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HasteTheMoment
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right, I figured its either 53cm or 55......eh duno.
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Old 12-15-08, 05:34 PM
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j3ffr3y
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im 5'10" with a 32 inseam, I ride a 53
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