I really like the Axiom Journey rack I put on my bike. its a little larger diameter tubing than most racks are made from, mounts really solidly, is as light as they get, and 2-3 times stronger than anything else I've seen (rated at 150 lbs or something). the Journey (and their Streamliner) racks mount a little farther back than most, so side bags are less likely to interfere with your heels.