Originally Posted by
bboy314
Any tire that fits in the frame should work fine with those rims. Likely something in the 2.3” range would be the frame’s limit.
Yup. Back in the day when "super wide" MTB tires became common, you would often see them mounted on pretty narrow rims. Sub-optimal, but not really a significant problem Unless the OP's wife is pushing performance limits, anything that fits the frame is OK.