Originally Posted by
f4rrest
How to measure:
Close the toilet lid.
Put towel on the lid.
Put a sheet of aluminum foil on the towel.
Wear only your briefs.
Sit down on the foil, not moving around. Lean forward about the same angle you'd ride the bike.
Stand up.
Notice the two dents left in the foil from your ischial tuberosities. Mark their centers with a marker.
Measure the distance between the marks.
OK, made my measuerment. Now what? Lol.
I keep finding different opinions on what size seat to buy using my actual measurement. For me it was 124mm. Some say to add 25mm to 30mm, other say add 15mm and buy that width seat. Then I saw Specialized says certain ranges should buy certain sized seats. I am currently using a 143mm but looking for something more comfortable.