Thanks for the input. There's a Performance Bike shop on Diversey near my work, so I'll check it out during lunch for the bike hangers you mentioned. I like the fact that it's portable!

I didn't think to connect the Lake Front and North Branch paths--that sounds like a good idea. Those are the only real paths I know. Last weekend, I did the North Branch path from Devon to Dundee Road three times--with the distance to and from my apartment, that came out to 148 km on my computer.
This sunday, I was planning to do the Lake Path 3 times in succession (from Hollywood to 72nd street), but now I have to give serious thought to combining it with the North Branch path. Less monotony that way..

I had a book on bike trails in Chicago, lent it to someone and then proceeded to lose it when they returned it!
Thanks again for the info!
Nav