Road bike seat height and size (picture)
#1
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Road bike seat height and size (picture)

Just got this Specialized gifted to me (thanks to my son) it's a XL 58cm, I'm 6'2" 34" inseam and got it dialed in to where I feel comfortable as far as seat height and position. I'm seeing a lot of seat tube and I'm wondering if a lot of you prefer this over a larger frame?
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The frame has compact geometry, which means the top tube slops downward from front-to-back. That requires more seatpost extension for proper fit. As long as the "Minimum Insertion" mark on the seatpost is not exposed (i.e., above the clamp), you're fine.
By the way, I have roughly the same dimensions as you, and I ride the same size Specialized bike.
By the way, I have roughly the same dimensions as you, and I ride the same size Specialized bike.
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Sometimes a lot of seat post sticking up softens the road bumps... maybe.
If you like the position the bike puts you in, then that's all you need. Many modern bikes expose a lot of seat post. Or look at the Giant TCR advanced. That's not seat post, instead, they ran the seat tube way up past the stays.
If you like the position the bike puts you in, then that's all you need. Many modern bikes expose a lot of seat post. Or look at the Giant TCR advanced. That's not seat post, instead, they ran the seat tube way up past the stays.

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Looks normal to me. Or, new normal. Still looks off, but that’s because I prefer level top tubes, and seatpost extension that they provide.

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^ the OP's frame has a tall head tube. Would this be characterized more as an endurance geometry? Either way, only the contact points matter. Saddle in relation to cranks, handlebars in relation to saddle. If it's comfy for you and handles okay, then it's right.
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Lots of exposed seatpost will make the ride less comfortable if the stem and handlebars are too low relative to your saddle position.
If that seat tube is 58cm, id reckon your seat is a bit too high. If you try experimenting with incrementally lower saddle positions, I'm sure you'd be able to get away with the same pedalling mechanics and power output at a lower centre of gravity
.
If that seat tube is 58cm, id reckon your seat is a bit too high. If you try experimenting with incrementally lower saddle positions, I'm sure you'd be able to get away with the same pedalling mechanics and power output at a lower centre of gravity
.
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Specialized Aethos Comp
How does the handlebar position feel?
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#8
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My 23"/57/58cm bikes :




Then again, I'm more long-of-torso and short-of-leg... AND I also have a 34-1/2" sleeve length -- so I need the fore-aft room more than the stand-over height...
We're all built physically different, so we need to 'fit' our bikes differently. That's why they make them in different frame sizes AND adjustability within those frame sizes!
And no, I don't have any of the more 'modern' sloped top-tube bikes... I don't have pics of my MTBs, but they are set up much the same with regards to seat height/bar height/reach. After all, I'm the same rider!
.




Then again, I'm more long-of-torso and short-of-leg... AND I also have a 34-1/2" sleeve length -- so I need the fore-aft room more than the stand-over height...
We're all built physically different, so we need to 'fit' our bikes differently. That's why they make them in different frame sizes AND adjustability within those frame sizes!
And no, I don't have any of the more 'modern' sloped top-tube bikes... I don't have pics of my MTBs, but they are set up much the same with regards to seat height/bar height/reach. After all, I'm the same rider!
.
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'84 Univega Viva Sport
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Unknown brand MTB of questionable lineage aka 'Mutt Trail Bike'
Plus or minus a few others from time-to-time
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Lots of exposed seatpost will make the ride less comfortable if the stem and handlebars are too low relative to your saddle position.
If that seat tube is 58cm, id reckon your seat is a bit too high. If you try experimenting with incrementally lower saddle positions, I'm sure you'd be able to get away with the same pedalling mechanics and power output at a lower centre of gravity
.
If that seat tube is 58cm, id reckon your seat is a bit too high. If you try experimenting with incrementally lower saddle positions, I'm sure you'd be able to get away with the same pedalling mechanics and power output at a lower centre of gravity
.

So the question was just about how it looks, and it looks fine because it's a modern sloping top tube, compact frame, as others pointed out.
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So the question of the bars' position remains unanswered.
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I would agree except look how much stack height he's running! A smaller frame would put the bars too low based on his current setup. I also agree this has nothing to do with the OPs position, which looks quite normal.
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Lots of exposed seatpost will make the ride less comfortable if the stem and handlebars are too low relative to your saddle position.
If that seat tube is 58cm, id reckon your seat is a bit too high. If you try experimenting with incrementally lower saddle positions, I'm sure you'd be able to get away with the same pedalling mechanics and power output at a lower centre of gravity
.
If that seat tube is 58cm, id reckon your seat is a bit too high. If you try experimenting with incrementally lower saddle positions, I'm sure you'd be able to get away with the same pedalling mechanics and power output at a lower centre of gravity
.
#13
Over forty victim of Fate
I guess I was looking more at saddle height compared to handlebar height. All of my bikes have the saddle/bars at the same height or within 1/2" .
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'75 Fuji S-10S bought new, 52k+ miles and still going!
'84 Univega Gran Tourismo
'84 Univega Viva Sport
'86 Miyata 710
'90 Schwinn Woodlands
Unknown brand MTB of questionable lineage aka 'Mutt Trail Bike'
Plus or minus a few others from time-to-time
'75 Fuji S-10S bought new, 52k+ miles and still going!
'84 Univega Gran Tourismo
'84 Univega Viva Sport
'86 Miyata 710
'90 Schwinn Woodlands
Unknown brand MTB of questionable lineage aka 'Mutt Trail Bike'
Plus or minus a few others from time-to-time
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But also, unasked.
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My 23"/57/58cm bikes :




Then again, I'm more long-of-torso and short-of-leg... AND I also have a 34-1/2" sleeve length -- so I need the fore-aft room more than the stand-over height...
We're all built physically different, so we need to 'fit' our bikes differently. That's why they make them in different frame sizes AND adjustability within those frame sizes!
And no, I don't have any of the more 'modern' sloped top-tube bikes... I don't have pics of my MTBs, but they are set up much the same with regards to seat height/bar height/reach. After all, I'm the same rider!
.




Then again, I'm more long-of-torso and short-of-leg... AND I also have a 34-1/2" sleeve length -- so I need the fore-aft room more than the stand-over height...
We're all built physically different, so we need to 'fit' our bikes differently. That's why they make them in different frame sizes AND adjustability within those frame sizes!
And no, I don't have any of the more 'modern' sloped top-tube bikes... I don't have pics of my MTBs, but they are set up much the same with regards to seat height/bar height/reach. After all, I'm the same rider!
.
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#16
Over forty victim of Fate
Note how long (not tall) the stem is on the 57cm Miyata! I < think > it is a 120mm. Note that the seat is mounted all the way back on the rail...I need length, front to back!!! Also, the rear light mounting band is hiding a half inch of the seatpost immediately above the frame. There is a handful of post showing above the seat clamp...
All of the other bikes are 23"/58cm frame. My preferred fit is for the top of the bars to be at the same height as the saddle top. The Fuji's bars have a deeper 'drop' than the others...
The light blue Univega's seatpost was cut waaaay short by a previous owner, so I had to source a longer one (and not the clunky through-bolt style!) Note there is no chain on the bike yet in this pic - the seat height has not been finalized yet....
The sand colored Univega is the pic as purchased with the old-clunky through-bolt Laprade seatpost and vinyl saddle. Both have since been replaced. I suppose I should post a post-refurb pic someday, but I'm holding off until I build up the new wheelset (Phil hubs, stainless spokes, Sun CR18 rims), and get the racks/panniers mounted.
All of the other bikes are 23"/58cm frame. My preferred fit is for the top of the bars to be at the same height as the saddle top. The Fuji's bars have a deeper 'drop' than the others...
The light blue Univega's seatpost was cut waaaay short by a previous owner, so I had to source a longer one (and not the clunky through-bolt style!) Note there is no chain on the bike yet in this pic - the seat height has not been finalized yet....
The sand colored Univega is the pic as purchased with the old-clunky through-bolt Laprade seatpost and vinyl saddle. Both have since been replaced. I suppose I should post a post-refurb pic someday, but I'm holding off until I build up the new wheelset (Phil hubs, stainless spokes, Sun CR18 rims), and get the racks/panniers mounted.
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For comparison....
58cm Ritchey Road Logic, 130mm stem.

Canyon Endurace in Large, 110mm stem.

Schwinn Circuit. 22"/56 cm.

These all have between 8.5 and 11cm of drop. Different bodies, different fits.
58cm Ritchey Road Logic, 130mm stem.

Canyon Endurace in Large, 110mm stem.

Schwinn Circuit. 22"/56 cm.

These all have between 8.5 and 11cm of drop. Different bodies, different fits.
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#19
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This has turned out a lot more interesting than I thought and I appreciate the replies. Some mentioned if the stem/handlebar feels low, at 66 yrs old perhaps flipping the stem for a more "comfortable" ride would be the wise thing to do but I'm used to always having the bars lower in relation to the seat. As for the seat height to the pedals, wearing cycling shoes my legs are almost stretched out with a slight angle at the knee in the low stroke. For the fore/aft, the seat is somewhere in middle position.
Last edited by gilpi; 06-12-21 at 07:07 AM.
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More exposed seat post is a good thing for comfort, so long as its not too much. That could be dangerous. If your stack is sufficiently high or low for your needs/riding style, then this new approach towards frame geometry is a good thing. I've recently bought a 2012 Trek fx with... a sloping top tube and im very happy with the bike. The stack is a tad lower than what I would have preferred, but the uncut steerer tube gives me more than enough added stack but the extra exposed seat post and more agreeable standover clearance is most welcomed over my previous 63.5cm nishiki which gave me practically zero standover clearance. Im happy with this more modern approach in frame design such as the carefully butted aluminum tubes etc
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My 23"/57/58cm bikes :




Then again, I'm more long-of-torso and short-of-leg... AND I also have a 34-1/2" sleeve length -- so I need the fore-aft room more than the stand-over height...
We're all built physically different, so we need to 'fit' our bikes differently. That's why they make them in different frame sizes AND adjustability within those frame sizes!
And no, I don't have any of the more 'modern' sloped top-tube bikes... I don't have pics of my MTBs, but they are set up much the same with regards to seat height/bar height/reach. After all, I'm the same rider!
.




Then again, I'm more long-of-torso and short-of-leg... AND I also have a 34-1/2" sleeve length -- so I need the fore-aft room more than the stand-over height...
We're all built physically different, so we need to 'fit' our bikes differently. That's why they make them in different frame sizes AND adjustability within those frame sizes!
And no, I don't have any of the more 'modern' sloped top-tube bikes... I don't have pics of my MTBs, but they are set up much the same with regards to seat height/bar height/reach. After all, I'm the same rider!
.
Note how long (not tall) the stem is on the 57cm Miyata! I < think > it is a 120mm. Note that the seat is mounted all the way back on the rail...I need length, front to back!!! Also, the rear light mounting band is hiding a half inch of the seatpost immediately above the frame. There is a handful of post showing above the seat clamp...
All of the other bikes are 23"/58cm frame. My preferred fit is for the top of the bars to be at the same height as the saddle top. The Fuji's bars have a deeper 'drop' than the others...
The light blue Univega's seatpost was cut waaaay short by a previous owner, so I had to source a longer one (and not the clunky through-bolt style!) Note there is no chain on the bike yet in this pic - the seat height has not been finalized yet....
The sand colored Univega is the pic as purchased with the old-clunky through-bolt Laprade seatpost and vinyl saddle. Both have since been replaced. I suppose I should post a post-refurb pic someday, but I'm holding off until I build up the new wheelset (Phil hubs, stainless spokes, Sun CR18 rims), and get the racks/panniers mounted.
All of the other bikes are 23"/58cm frame. My preferred fit is for the top of the bars to be at the same height as the saddle top. The Fuji's bars have a deeper 'drop' than the others...
The light blue Univega's seatpost was cut waaaay short by a previous owner, so I had to source a longer one (and not the clunky through-bolt style!) Note there is no chain on the bike yet in this pic - the seat height has not been finalized yet....
The sand colored Univega is the pic as purchased with the old-clunky through-bolt Laprade seatpost and vinyl saddle. Both have since been replaced. I suppose I should post a post-refurb pic someday, but I'm holding off until I build up the new wheelset (Phil hubs, stainless spokes, Sun CR18 rims), and get the racks/panniers mounted.
It was a mistake for me when I rode old vintage bike frames. Many way too big for my 5'-11" with 34.5" inseam. The saddle being so low to the top tube that I never could experience a comfortable aero position. So instead I then wanted a more upright position which created more weight on my butt for long rides and energy wasting drag on long rides.
Since getting a new bike that allows me to get lower than I ever could on the old style frames, I've found a new comfortable and more aero position for long rides. And as for others that claim they aren't limber enough to get aero..... well I never could touch my toes. Today I can't even bend over with legs straight and get my hands halfway down my shins. But I ride comfortably with a lot of drop.
Last edited by Iride01; 06-12-21 at 10:40 AM.
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This has turned out a lot more interesting than I thought and I appreciate the replies. Some mentioned if the stem/handlebar feels low, at 66 yrs old perhaps flipping the stem for a more "comfortable" ride would be the wise thing to do but I'm used to always having the bars lower in relation to the seat. As for the seat height to the pedals, wearing cycling shoes my legs are almost stretched out with a slight angle at the knee in the low stroke. For the fore/aft, the seat is somewhere in middle position.
I guess really, the last one is the key - is it comfortable for hours? Do you WANT to ride? Or do you dread it? I surprised myself by being able to ride comfortably with about 2 more cm of drop than I was used to (the Schwinn posted above, compared to the Ritchey and Canyon), and it passed my acid test - the 56 mile Sunday ride - with flying colors.
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I don't know if it's a mistake for you, so don't take offense that I used your reply as an example.
It was a mistake for me when I rode old vintage bike frames. Many way too big for my 5'-11" with 34.5" inseam. The saddle being so low to the top tube that I never could experience a comfortable aero position. So instead I then wanted a more upright position which created more weight on my butt for long rides and energy wasting drag on long rides.
Since getting a new bike that allows me to get lower than I ever could on the old style frames, I've found a new comfortable and more aero position for long rides. And as for others that claim they aren't limber enough to get aero..... well I never could touch my toes. Today I can't even bend over with legs straight and get my hands halfway down my shins. But I ride comfortably with a lot of drop.
It was a mistake for me when I rode old vintage bike frames. Many way too big for my 5'-11" with 34.5" inseam. The saddle being so low to the top tube that I never could experience a comfortable aero position. So instead I then wanted a more upright position which created more weight on my butt for long rides and energy wasting drag on long rides.
Since getting a new bike that allows me to get lower than I ever could on the old style frames, I've found a new comfortable and more aero position for long rides. And as for others that claim they aren't limber enough to get aero..... well I never could touch my toes. Today I can't even bend over with legs straight and get my hands halfway down my shins. But I ride comfortably with a lot of drop.
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I do that all the time in the other sub-forum about fitting. It's my some 55 plus odd years of trial and error experiences not listening to others when I probably should have. And still is anecdotal at best.... but it works for me. However by going my own way, I at least know there are quite a few myths of frame fit that are touted as gospel by others.
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I have a couple key observations I used to determine whether I've set up a bike right for me. Do my hands fall naturally onto the hoods? Can I ride comfortably in the drops, pedalling, for a couple miles? Can I spin at 95-105 and if feels natural? Can I sit up and take my hands off the bars without falling forward? Does the bike feel stable at all speeds? And the big one - Can I ride for at least 3 hours without pain in the knees, hands, lower back, etc, or numbness anywhere?