Silly question!
Now all these bike brand shows the sizes you can fit on !
I am 5/6 with a short 28 inseam ! Most of bike brand show i am a small with the reach and stack measurements, but a small frame because my short leg I have to put my seat is very close to the frame! It Looks very weird!!!
I was looking for a ventum (accord to them, small fits between 5/2 and 5/8)
My current bike I have the seat at 25 and half inch from center of the BB !
Doe a seat tube make that much difference?
Is anyone out there have the same problem?
Thank you!
Seat tube is only relevant if it stops you from getting the saddle in the right place and if it means that the standover is also a problem
You didn’t say road or tri, I’ll use the NS1 as an example
bike geometry comparison tool:
The standover on the small is greater than your inseam, so that wouldn’t be a good choice. The XS is 28mm lower so you would go with that and use a longer stem and more spacers to get the bars in the right place
It is a tt bike!!!
Currently I ride a diamondback serios f!
Thought upgrading but like a said hard to find!
Around here every bike shop saying I need have a bike to they can fit me!
Tried to compare few different brand !
Ventum, cannondale superslice, and argon e 118 disc
All they have close to reach and stack measurements but seat tube is and stand over is relatively bigger!!!
Frustrating !!!
Seat tube is only relevant if it stops you from getting the saddle in the right place and if it means that the standover is also a problem
You didn’t say road or tri, I’ll use the NS1 as an example
bike geometry comparison tool:
The standover on the small is greater than your inseam, so that wouldn’t be a good choice. The XS is 28mm lower so you would go with that and use a longer stem and more spacers to get the bars in the right place
I suggest you find a good bike fitter who has a fit bike so that they can rearrange the different points to set it up "ideally’ for you. Then you will know what dimensions work for you and not the average person. These charts do not work for the people at each end of the bell curve. Once you have that info in hand the choices will be defined by what the stack and reach etc are for the frames you are interested in vs what you should have ideally. It is hard to impossible to fit someone to a bike frame that is too large for them but it is more possible if the frame is a bit small. There are a lot of things to consider in fitting a person to a bike, the seat height is but one of them, how flexible you are physically ie are you easily able to grab your feet and lay your head on your knees? or barely able to touch your toes… the list is long and why it takes a lot of time to do a good bike fit.
“Around here every bike shop saying I need have a bike to they can fit me!”
Why would they say that?
Because they suck!!!
I paid for fit me on a diamondback and didn’t get any measurements! Put on the trainer and just moving couple things!
Good thing wasn’t that much!
I have been looking for a guru fit but the closest it is 1:45 hr from where I live!!!
Seat tube is only relevant if it stops you from getting the saddle in the right place and if it means that the standover is also a problem
You didn’t say road or tri, I’ll use the NS1 as an example
bike geometry comparison tool:
The standover on the small is greater than your inseam, so that wouldn’t be a good choice. The XS is 28mm lower so you would go with that and use a longer stem and more spacers to get the bars in the right place
I suggest you find a good bike fitter who has a fit bike so that they can rearrange the different points to set it up "ideally’ for you. Then you will know what dimensions work for you and not the average person. These charts do not work for the people at each end of the bell curve. Once you have that info in hand the choices will be defined by what the stack and reach etc are for the frames you are interested in vs what you should have ideally. It is hard to impossible to fit someone to a bike frame that is too large for them but it is more possible if the frame is a bit small. There are a lot of things to consider in fitting a person to a bike, the seat height is but one of them, how flexible you are physically ie are you easily able to grab your feet and lay your head on your knees? or barely able to touch your toes… the list is long and why it takes a lot of time to do a good bike fit.
+1
Go to a fitter that has a fit bike. This not only gives them more flexibility in adjustment; it also is a lot faster for them to make changes so they can get more done during the fitting.
Short seatpost extension is only a problem if:
-You dislike the aesthetics.
-It creates a standover problem.
-The seatpost design has a curve or flare that prevents it from going as low as you need it to.
You think you have it bad? I’m 5’9" with a (true) 28" inseam, ruler pulled up snug. That’s more like a 27 to a tailor.
You’ll be looking for a fairly small, long and low(ish) frame, depending on how much front end stack you need. The very smallest Serios has a stack of 50cm, and the medium is a 53. These are on the tall side, so if you can hit your position numbers on that, you won’t have much trouble finding something else that will work.
What size Serios are you on? What crank length are you running?
As other folks on the thread have already said, you need to give us some fit coordinates if we’re really going to help you out. You should check this out before going any further…
I look at the seat tube length, Center to Top to figure out if I can get the saddle low enough.
My saddle height is 620mm; the seat tube length on my IA16 is 489mm and I have no problems getting the saddle low enough.
Other bikes I own have seat tube lengths of 440mm, 450mm, 488mm, and 520mm and I can get the saddle low enough on all of them.
Stand-over height has very little meaning to me since I can stand over very few bikes since the 650C was killed.
I am riding a 50cm!
That is the video !
I can’t get video to upload!