Originally Posted by WheresWaldo

Fanboi or fanboy, dark13star is just too cool for me. Still offering advise when admittedly the OP doesn't even know what he needs.

So axelfox, your Campagnolo Record seat post is a setback seatpost. The question remains, is you arse comfortable where it is or do you slide forward/backward to find that one comfortable spot on the saddle. If it is in the correct spot then measure from the centerline of the seat post to the center of the clamping area. If that measurement is more than 16 mm then forget that anyone ever mentioned Thomson!

Here is a picture of the dimension we need:


Now if you are constantly pushing yourself back to find a comfortable spot, maybe your saddle needs to come forward and less setback is appropriate. If that is true and the subsequent measurement is about 16mm give or take 3 or 4 mm then reconsider the Thomson. Obviously if the opposite is true then more setback might be better, in this case the Thomson will not work.

The reason for such a small range on the Thomson is that one of the best things about it also makes it work on the narrowest range of saddles. The Thomson has just about the biggest, if not the biggest, clamp on the market and really does not allow as much fore/aft movement as many other seat posts. This is not entirely a bad thing as it also spreads out the contact points with the saddle rails offering more support for the saddle, if you have sufficiently long rails.

After you have finally decided that your saddle is in the correct position we can work on whether you are stretched out too much or not enough, as that still isn't clear from any of your posts.