At what point would I need to be concerned about increasing rim width as I go to wider tires? I'm now using Maxxis High Rollers 2.35 on Mavic X-139 rims. Thanks for reading.
I used to have a tire/rim size ref chart from Mavic, but I can't find it...
Maxxis tires seem to run really small; my 2.7 High Roller & Minion actually measure 2.5. I wouldn't worry about your tires, but I also wouldn't go any larger than 2.35 to keep from rolling it off the rim, which could be very ugly.