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Can you twist a setback seatpost 180 deg and mount the saddle?

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Can you twist a setback seatpost 180 deg and mount the saddle?

Old 03-13-09, 05:52 PM
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calyth
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Can you twist a setback seatpost 180 deg and mount the saddle?

I'm wondering if there's any mechanical reasons why I couldn't turn my setback seatpost 180 degree, and mount the saddle on it.

I bought a used bike that seems a tad long, and wonder if this could work.

Thanks!

Last edited by calyth; 03-13-09 at 07:03 PM.
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Old 03-13-09, 06:00 PM
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The short answer is, in most cases, yes you can turn the post around. But wouln't turning a "setback" seat post around make to the bike shorter (i.e setforward)?

Last edited by DOS; 03-13-09 at 06:43 PM.
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Old 03-13-09, 06:04 PM
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Yup. Right now the saddle's mounted quite forward, but not quite forward enough to be totally comfortable. Also I can't put an under-saddle bag.

Last edited by calyth; 03-13-09 at 07:17 PM.
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Old 03-13-09, 06:51 PM
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Ok, I am confused. You say the bike is too short with the setback post but you want the saddle even further forward? I am not getting how that makes sense.

Whatever the case, You are only going to make marginal diference with the setback post. And sliding the saddle back and forth on the rails will have implications for position over the pedals and pedal stroke that could cause problems with knees. To get the right balance between reach to the bars and position over the pedals, you will need to factor is seatpost, saddle position, stem length, and stem rise. You might consider droppping a few bucks on a professional fitting to get everything dialed in.
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Old 03-13-09, 07:03 PM
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Originally Posted by DOS View Post
Ok, I am confused. You say the bike is too short...
By short, I mean long. I can be an idiot like that sometimes

TBH, I don't mind to get a professional fitting done, it's just getting one scheduled in is the hard part.

Last edited by calyth; 03-13-09 at 07:18 PM.
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Old 03-13-09, 07:12 PM
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You can certainly turn the seatpost around and move the saddle position 30 to 40 mm further forward. A problem may be if the saddle clamp's angular adjustment isn't enough to level the saddle while the seatpost is turned that way. Try it and see.
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Old 03-13-09, 07:48 PM
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This will work, but it might cause more problems than it solves. The function of fore-aft adjustment on a saddle is not reach (from the seat to the handlebars) but rather the relation of your butt to the pedals. Ideally you should adjust the seat position first, independent of reach, and then change the reach by swapping out for a different stem.
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Old 03-13-09, 07:57 PM
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Originally Posted by fuzz2050 View Post
this will work, but it might cause more problems than it solves. The function of fore-aft adjustment on a saddle is not reach (from the seat to the handlebars) but rather the relation of your butt to the pedals. Ideally you should adjust the seat position first, independent of reach, and then change the reach by swapping out for a different stem.
+1,000,000
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