Got an On One ti cross (sadly defunct but same geometry PX uncle john) that now has an XT “trekking” chainset (48-36-26). 68mm BB shell & 135mm dropouts. It gets used for “recreational” cross (mincing around the south downs mainly), winter road bike and touring bike and find this chainset combined with a mtb and road cassette does all that I need. Works a treat although setting up the front mech (you need to use a road triple front mech with stis to get the right amount of swing – mtb one won’t hack it) was a little fiddly. I ended up with the BB spacers the wrong way from conventional (2 on non drive side, one on drive maybe – can’t remember and it’s dark out- it was not the normal setup certainly) to tweak the chainline a little.
