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Saddle Rail Widths(3 posts)

Saddle Rail WidthsHoward
Jun 15, 2001 7:04 AM
I had always assumed that any saddle would fit on any seatpost clamp - for, after all, why shouldn't there be an industry standard for such a simple fitting? Apparently, it seems that my assumption was wrong:

1. A few years ago, I needed to replace a saddle on my Trek 7600 hybrid. I wanted to replace it with an Avocet Gelflex 30 saddle. The distance between the Avocet 30 saddle's rails did not allow me to do so. (I ended up replacing the saddle with an Avocet O2 Air saddle.)

2. Last night, while trying to install a new saddle on my racing bike, the same kind of situation occurred. My racing bike has a Thomson Road seatpost. The saddle that I wanted to install was a Terry Liberator. Though both the seatpost and the saddle are well known in the cycling industry, there was no fit between them - the seatpost clamp could not handle the distance between the Liberator's saddle rails.

Anyone else ever have such a problem? Is there an easy way to determine, before ordering a saddle, whether the saddle can readily be attached to the seatpost clamp?

Thank you.
Industry standardsKerry Irons
Jun 15, 2001 7:05 PM
I've had a lot of saddles and seat posts over the years, including some real cheapies (of both) that came on various low end MTBs I've used for commuters, and never had the problems you've described. Doesn't mean your problems aren't real, but with all the non-standard stuff in cycling, until I read your post I would have said that saddle rail spacing was indeed a standard. I've never worried whether a saddle would fit a post.
EpilogueHoward
Jun 19, 2001 11:37 AM
Thanks for your reply. Last night, I tried to attach the saddle, once again, to the seatpost clamp. Like before, only one rail fit comfortably in its seatpost groove while the other rail, being spaced slightly too far away, did not. This time, unlike the first time, I tightened the connecting seatpost bolts and the saddle was secured. (I guess the '2nd' rail was forced into place by the pressure generated by bolts being tightened.)