First measure your sits bones like the others said.
If your current saddle is about 1 cm wider to each side than your bone-to-bone measurement (or at mininum the same width as your outside-to-outside measurement) then the saddle is the right width.
Your next step is too look at the overall shape of the saddle. Is it pear shaped (gradual transition from wide part to nose) or "T" shaped (abrupt transition from wide part to nose)?
I chafe exactly as you describe if I ride on a pear-shaped seat, even if the width is perfect for me.
The "fold" from my butt to my thigh rubs on the gradual part of the pear-shaped seat and I get miserable. Take away that gradual transition, there's nothing to rub me raw.
I ride a Brooks B67, and plan to get a B68 (a Brooks for each bike) as soon as I win the lottery.
The Serfas Niva seat with the cut-out is actually narrower than my Brooks, but because of the *shape* it chafes me horribly, while I've never had a single sore or irritation from the Brooks.
Last edited by KnottedYet; 02-25-2007 at 07:02 AM.
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