Last-minute duet ride with Wally. Cold, windy start lead to some warming, but the gales increased significantly. Explored portions of Gilman Trail as well as a couple of dirt/limestone offshoots (prairie trails through Aurora Chain of Lakes, Aurora West & Lake Run Forest Preserves (south end part of Pasty-Brest Pastry?)), as well as several neighborhoods in/near Prestbury. Swalbe cross tires worked well in snow/ice up to 2 inches with very little traction issues. Dirt trails were frozen and rutted for first part of the ride, leading to rough riding conditions (should have dropped psi before start) with softening near the end. South winds were punishing on return via Bliss Road, but there was no other easy way to cross I-88. Legs were trashed by the time we arrived home. Solid effort on several new pathways, which I plan to use when the weather warms.