Originally Posted by
wahoonc
Thanks syncro87,
Yes seat posts are usually marked. The reason I am asking is I have a long legs and most one sized fits all bikes...don't. My wife is just over a foot shorter than I am with short legs and between the two of us we usually fall outside the extremes of one sized frames.
You can get longer seat posts but that isn't always a good solution. I have actually had a frame crack from the stress put on it by the longer post (at least that is what it looked like at the time)
Aaron
Ok, I'm sure there is a proper way to measure this but I don't know what it is, so I did it two ways for you.
I did indeed find the mark on the seat post. I then inserted the seatpost about another 1/4 inch in just to err on the conservative side.
First measurement I took was perpendicular to the floor, not at an angle following the seat tube. With the pedal at 6 o clock, in other words max distance from the seat, the height from pedal to seat top was just over 36", say 36 1/4".
Second measurement was from the center of the center of the bottom bracket to the top of the seat, following the tube at an angle rather than perpendicular to the ground. This measurement was right around 32, give or take a tiny fraction.
Let me know if you need anything else. I'm an amateur, and can do most anything on a car but am not yet familiar with working on bikes, so I'm not the best with bike tech yet.
BTW, crank arms look to be about 7.5" from the attachment bolt to the end of the arm, so your legs would actually have a little more room at max extension than my seat to bottom bracket measurement.