I don't really see the point of using XTR components on a commuter. I don't think they're functionally better than XT, or LX...they're lighter and maybe polished better. The performance from any decent group should be pretty good.

This bike uses a mix of Deore DX, XT and some other bits...it's a highly effective, Frankenstein, camo'd commuter that I think most folks pass on by without notice. The Brooks draws the eye, but the word on them doesn't seem to be out yet, and I lock mine through the rails with cable.