I have a Schwinn Speedster we found cheap on CL (S-A three-speed, 26" wheels, "Schwinn Approved" handbrakes, built circa 1980s?). It's perfect for bopping around town - riding to the train, heading to the Y, running out to grab Thai food, that sort of thing. Basically, situations where the carrying capacity of the Xtracycle isn't necessary or for which the Madone would simply be over the top.
It's great except for the steel rims. Aside from being a bit wobbly, they can scare the bejeezus out of you in the wet. I'd like to replace them with the alloy wheels, but obvious Google searches have proven useless. I have brand new tires, tubes and rim strips, so I'd prefer to find some rims which are Schwinn 26" size (S-5? S-6?). If that's not possible will any old 26" alloy rim work with my brakes (can they be adjusted to work)?