Look for a bike co-op near you, or maybe a small shop that does lots of used/recycled business, not much removed from a co-op. I have a '90s Marin MTB with old knobbies and planned to find some center-ridge tires for it. In the dumpster of the co-op I found a set of matching 26" wheels, also 7-speed cassette with skewers, with slicks. For free. You never know what's out there until you begin looking.
