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Seat post length(5 posts)

Seat post lengthGTrider215
Jul 27, 2001 5:13 PM
what was that method to determine how high to put your seat
109%Kerry Irons
Jul 27, 2001 5:41 PM
There is no fixed formula, since it depends on your flexibility and your pedaling style. However, 109-110% of your inseam from pedal axle to top of saddle works pretty well for most riders. And that's not the inseam on your Dockers, but taken with a book or broomstick pulled up tightly into your crotch, and then the distance to the floor with your feet about 6 inches apart.
re: Seat post lengthjtolleson
Jul 27, 2001 7:03 PM
Forget the broomstick and measure it in the saddle, on the trainer. A custom fit (money well spent) will help you get this and every other aspect of fit done right (fore-aft of saddle, stem length, handlebar angle, whatever) but if you aren't going to do that, at least slap the bike on the trainer and drop that foot to 6 o'clock (DON'T tilt your pedal to reach the bottom of the stroke; spin for awhile to get a feeling where your foot falls naturally) and look for a fully extended leg with the SLIGHTEST knee bend when your heel is flat. This is sort of the poor man's self-fit, and I'm sure folks'll tag me for all the nuances I'm skipping. But it is a pretty good start, and beats most other methods short of the professional fit.
re: Seat post lengthjtolleson
Jul 27, 2001 7:04 PM
Ooops, I should proofread. I meant Don't tip your PELVIS to reach the bottom of the stroke.
Good starting pointjagiger
Jul 27, 2001 7:26 PM
I tried both methods suggested & the second is more straight forward
(i.e. easy to do). I also got fitted by LBS for a new stem, to get a better fit. The guy reccomended that I more my seat up a little. It wasn't anything scientific though but it felt ok. Overall, the $20 spent for the fitting was worth it, although it helps to know how good the LBS guys are ("hot shot" vs solid tech).