I'm looking for a 28c tire for my wife's road bike, for off road/gravel use. I purchased a second set of wheels that I'm going to mount them on, so quick change can be done from road to allroad use. I have 32c Kenda Kwicker tires, which I love, that I tried to put on her bike. They rub. 700x30 MIGHT fit, but I think the 28 is a safer bet. Most of the 28 tires I can find are basically just wide road tires. Any suggestions for an off-road capable tire in 28c size?