Holy cow, Tony! You're gonna put your wife on the 400F, and have her try to keep up with you when you're riding through the hills, and you're worried that the ideal tire is a few dollars "too expensive"? Sheesh.....buy the best, stickiest tire you can, in the correct size, regardless of the price, and consider it a gift to her. That'll be way less expensive than retrieving her from some ravine, and just think what it will cost to spruce up the 400 for the next wife.