Originally Posted by
jPrichard10
I know the above, but since the actual expert is here: My 910 is a 25.5", which I had read was Columbus SP instead of the regular specced SL. We're the tubesets that Trek used for the largest sizes of 510s and 710s also thicker Ishiwata or 531 (or longer butts, etc)?
No, Columbus frames larger than 60cm used SP tubes, but the Reynolds and Ishiwata frames used the same gauge tubing for all sizes. So a large 910 frame like yours would be slightly stiffer and heavier than the same size Reynolds or Ishiwata frame.