tire pressure of MTB rims with Slick tires
I've noticed from the archives that many people have put slick tires on their mountain bikes for road touring, but nobody seems to have addressed the critical area of tire pressure.
My rims, mavic x517s, are "rated" (they are not real clear here) in their web site as suited for pressures from 30 to 60 PSI. Thinner slick tires are usually intended to be inflated to about 80 to 100 PSI. In researching my rims prior to purchasing the bike they came with someone said he put slick tires on and it split the rims after a relatively short time, and was denied warrany replacement because he used the higher pressure tires.
Going to a 700 rim (ie, road bike intended for higher pressures) is out because the brakes would not align. Does anyone know if 26" rims exist that are actually rated for the higher pressures, or are people using lower tire pressures, or are people just tempting fate and hoping everthing works out. Admittedly, the rim on my bike is purposely built light for xc racing and perhaps a heavier rim would be stronger.
Any feedback would be greatly appreceiated.