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Will a 58cm bike be good for somebody 5'9 nm.(17 posts)

Will a 58cm bike be good for somebody 5'9 nm.stinkfoot247
Jun 19, 2003 8:34 AM
too general/not enough info. search this board forJS Haiku Shop
Jun 19, 2003 8:51 AM
fit advice
fitting
bike fit

and check the coloradocyclist.com site for more fit info.

height does not relegate one to a certain size of frame.
probably notTime Trial dot org
Jun 19, 2003 8:55 AM
I ride a compact 57 and I'm 6'0"

I also ride a Specialized M4 s-works in a 58 and it fits me well.




Depends on your inseam but I would say you are better suited to a 55 or 56.



www.timetrial.org Time Trial Racing
~generally~ disagreeSteve_0
Jun 19, 2003 9:11 AM
I agree most shops would put most 5'9" guys (again, really depends on inseam) on a 55. However, based on the ubiquity of HS spacers and positive-rise stems, I'd say that's (generally) still too small.

A 58 is only 1 1/8 taller than a 55, dropping the ST by 1 1/8 will accommodate the inseam. However, he now has (roughy) 1 inch handlebar rise built into the frame! no rising stems, no HS spacers. No maxed-out quills.

I say, generally, the bigger the frame the better, as long as you can still straddle the TT with some clearance. The exception being a TT or track rig.
probably not, agreed (nm)pdg60
Jun 19, 2003 11:10 AM
re: Will a 58cm bike be good for somebody 5'9 nm.randell
Jun 19, 2003 9:07 AM
no that frame is way to big for you.the top tube is way to long so you would be to far stretched out. i am 6' and ride a 57 cm. bianchi, very nice balance on the bike. also i did mgr. a couple bike shops for about 7 years. you should ride a 54-55 cm. frame,are the jut trying to unload a bike on you?
what length stem?Steve_0
Jun 19, 2003 9:19 AM
again, a 58's ST is only an inch taller than a 55. This will certainly increae the TT length, but will also raise the bars, effectively shortening the cockpit. a shorter stem can also compensate for the extended reach.

Only he can tell if the frame is too big, and only by riding, but I contend most bike shops size guys wayyyy to small. Poor fit is apparently in style, and few shops recognize it.
Not necessarily.djg
Jun 19, 2003 9:57 AM
You're right that bringing the bars up reduces the reach, all else equal--hard to argue with that elementary school geometry. You're also right that raising the top of the bike (raising the top of the head tube, that is) reduces the need for spacers, etc., all things equal. If, however, we assume that by moving from a 55 to a 58, the rider is simply substituting a new and improved head tube for 3cm worth of spacers, then he's not necessarily changing the cockpit in general or the reach to the bars in particular. If he's not raising the bars but he IS gaining several centimeters in top tube (beats me if he is), then he's potentially got an issue.

I'm not saying that a 58 won't fit, or that it cannot be made to fit. I cannnot tell--certainly not over the internet and certainly not without knowing what geometry a "58" is actually buying this guy. And I agree that many folks get placed on bikes smaller than they might really like. On the other hand, a 58 certainly MIGHT have a top tube well longer than he's used to--and if he's not actually raising the bars in the process he might need a shorter stem than most would like to get the reach right.
tru dat...Steve_0
Jun 19, 2003 11:26 AM
i agree, barheight and geometry remaining equal necessitates a shorter stem. that was the intent of my 'a shorter stem can compensate'.
re: Will a 58cm bike be good for somebody 5'9 nm.randell
Jun 19, 2003 9:27 AM
no that frame is way to big for you.the top tube is way to long so you would be to far stretched out. i am 6' and ride a 57 cm. bianchi, very nice balance on the bike. also i did mgr. a couple bike shops for about 7 years. you should ride a 54-55 cm. frame,are the jut trying to unload a bike on you?
6'2" and I have one bike 58 & the other 59. nmJuanmoretime
Jun 19, 2003 9:55 AM
I'm 5'9 and ride a 54cm w/ no spacers nm.853
Jun 19, 2003 10:08 AM
Probally too big! nmthe bull
Jun 19, 2003 11:18 AM
Unless you're looking at a Trek...NewDayNewWay
Jun 19, 2003 5:07 PM
which measures differently than other brands. I'm just shy of 6' and ride a 58 cm Trek. Sometimes I think I should have gone with a 56, but with my thompson post I'm close to KOPs (which is where I like to be) and it is a very good fit, and longer wheel base provides some advantage.
Unless you're looking at a Trek (self-correction)NewDayNewWay
Jun 19, 2003 5:09 PM
... I misread. I thought you said 5'11", but your 5'9". Even for a Trek, 58 is way too big I'm sure.
Need a lot more infoTrent in WA
Jun 19, 2003 5:36 PM
To really say whether the bike's too big for you or not, we'd need to know what your inside leg length is, your torso length, your arm length, shoulder width, general flexibility / condition, type of riding, etc. And that's even before we talk about the bike!

I'm a shade under 5'10", like the bars anywhere from dead level with the saddle to 1" below them, and fit just fine on a bike with a 60cm seat tube and 57-58 cm top tube, w/ a stem between 10 and 12 cm long. That's assuming, though, that the seat tube angle is in the 72-73 deg. range and the head tube in the 71-72 range. Knowing only the seat tube length, there's no way we could answer your question in any legitimate way.

Trent
thanks for the help just looking for a good commuter bikestinkfoot247
Jun 19, 2003 7:45 PM
I just saw a cool bianchi cx bike I looked under the classifieds I wanted to use as a commuter bike. Wanted to know if it would work out for me.