Post by Smoke on Sept 20, 2011 12:18:26 GMT -6
From Spec's FAQ section:
Quote.
How to measure saddle size at home.
Published 11/07/2008 06:34 AM | Updated 01/13/2011 10:11 AM
Q: How to measure yourself (e.g. sit bone position) and select an appropriate Specialized BG saddle?
A: There is a way to find out your sit bone width at home but the accuracy may be a bit subjective.
First of all, find some kind of compressible foam that will hold it's shape for a few moments when you stand up.
Something along the lines of a sleeping bag pad, or stadium cushion.
Put the foam on a low box or chair that will have your thighs at the same level as they are when your foot is at the top of the pedal stroke. Usually just find something low enough that your thighs are almost parallel to the ground, and that is about right (sit with heels in as well, upper body just like you are pedaling).
After sitting on the foam for long enough to make an indentation, stand up, and use your fingertips to find the low points, alternately you can drop some ball bearings in the indentations, and they will immediately roll to the low points...
Measure this distance, center-to-center, for a "neutral" riding position, this is your sit bone width.
If your sit bones are between 70 & 100mm, you should ride a 130mm saddle, unless you ride in an upright, comfort position. Then you should ride a 143.
If your sit bones are between 100 & 130mm, you should ride a 143mm, unless you ride in a very upright, comfort position. Then you should ride a 155
If your sit bones measure out between 130mm and 160mm, and you ride a very Aerodynamic, racing or triathlon position, you should ride a 143mm saddle. All other riding positions should use a 155.
Quote.
How to measure saddle size at home.
Published 11/07/2008 06:34 AM | Updated 01/13/2011 10:11 AM
Q: How to measure yourself (e.g. sit bone position) and select an appropriate Specialized BG saddle?
A: There is a way to find out your sit bone width at home but the accuracy may be a bit subjective.
First of all, find some kind of compressible foam that will hold it's shape for a few moments when you stand up.
Something along the lines of a sleeping bag pad, or stadium cushion.
Put the foam on a low box or chair that will have your thighs at the same level as they are when your foot is at the top of the pedal stroke. Usually just find something low enough that your thighs are almost parallel to the ground, and that is about right (sit with heels in as well, upper body just like you are pedaling).
After sitting on the foam for long enough to make an indentation, stand up, and use your fingertips to find the low points, alternately you can drop some ball bearings in the indentations, and they will immediately roll to the low points...
Measure this distance, center-to-center, for a "neutral" riding position, this is your sit bone width.
If your sit bones are between 70 & 100mm, you should ride a 130mm saddle, unless you ride in an upright, comfort position. Then you should ride a 143.
If your sit bones are between 100 & 130mm, you should ride a 143mm, unless you ride in a very upright, comfort position. Then you should ride a 155
If your sit bones measure out between 130mm and 160mm, and you ride a very Aerodynamic, racing or triathlon position, you should ride a 143mm saddle. All other riding positions should use a 155.
And so my week begins.