Originally Posted by RobbieTunes

That would not work, given that Klein spec'd a Superbe Pro double on a symmetrical BB for a touring rig. There are triple square taper cranksets out there, but all I tried ended way too wide. I wanted a compact triple, and the RSX is that, and uses a symmetrical BB. Also, the direct bolt FD spec'd by Klein had the chainline in tight to the frame. The inner ring overlaps, and it gets in tight enough that the L shifter can reach all three rings. It did not have enough range on a "standard" triple that sat too far out. If parts of my inner chainring had rubbed, I'd have found a different one or ground off the offending metal.

Adapting modern-ish components to this frame was twice as hard as setting up an even older frame to Ergo.

It's a wonderful frame and takes a while just to take in the idiosyncrasies, rides amazingly well and is super light for a tourer. Klein just looked down the road and made assumptions, perhaps, that did not hold up, for that time, even though "correct" in many ways:

Press-fit BBs
Thru-frame shifter cables
OS tubing

And some that didn't:

Direct- bolt FDs
Piggyback "aero" DT shifting
25.4 seat posts

I learned a ton on this one, and have built other Kleins, and would again; but 'twill be with a touch of chagrin and a wry approach to Klein's innovative mastery.

I managed to integrate my wants and needs with what Klein thought I'd want and need. How, even now, I have no idea. Luck, I think.