tall framr low saddle / short frame high saddle
07-13-16, 02:47 PM
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tall framr low saddle / short frame high saddle
General fitting hypothetical question - If we assume all other dimensions to remain constant, what's the difference between having a shorter seat tube with more seat post sticking out of it, and a taller seat tube with less post sticking out of it? Again, assuming that the top tube length doesn't change, and the butt-to-pedal distance and saddle set back and everything else stays the same.
Also, please excuse the typo in the title. I was in a bit of a rush. ;-)
Also, please excuse the typo in the title. I was in a bit of a rush. ;-)
07-14-16, 08:55 AM
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Head tube length won't change either so handlebar height relative to seat height increases if seat post extension increases. Fine if you want that. Otherwise... long seat posts are easy to find. Long steerer tubes less so.
07-14-16, 09:57 AM
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Frame would be lighter on smaller frame.
But, top tube length WILL change.
I personally don't like the trend toward smaller frames.
I still size by 'handfull of seat post'
But, top tube length WILL change.
I personally don't like the trend toward smaller frames.
I still size by 'handfull of seat post'
07-14-16, 06:27 PM
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I have bought a few English three speed bikes to play with. The 23 inch frame has the same TT length as the 21 inch frame (actually it measure .25 inches shorter). The only difference in these when I adjust my saddle height to BB at my typical 76 cm approximate (109% of my barefoot inseam, cycling inseam), the 23 inch frame has a higher handle bar and the 21 inch frame has a lower handle bar. I prefer the 21 inch fit because of the lower handle bar, just more comfortable, efficient and balanced. The top tub of course is higher on the 23, and for rough ground dismount IMO too high, only about an inch stand over.
I prefer bicycles to the smaller side of my fit range and enjoy my bar top on a drop bar bike around 2 to 3 inches below the saddle. In no case would I want the bar tops equal to or higher than the saddle. I come from a performance background, not a comfort background, so I am accustomed to some saddle to bar drop and prefer it both for efficiency and balance as well as general comfort.
These goofy modern bikes with the very sloped top tubes, you are going to have a lot of seat post out for any reasonable top tube length.
I prefer bicycles to the smaller side of my fit range and enjoy my bar top on a drop bar bike around 2 to 3 inches below the saddle. In no case would I want the bar tops equal to or higher than the saddle. I come from a performance background, not a comfort background, so I am accustomed to some saddle to bar drop and prefer it both for efficiency and balance as well as general comfort.
These goofy modern bikes with the very sloped top tubes, you are going to have a lot of seat post out for any reasonable top tube length.
