the rims on my cross bike are worn from braking, and stopping isn't very good. I've wiped off any grease with simple green, and sanded the pads, with little improvement. I'm rebuilding with rear with a CR18 (the same as whats on their now). for the more critical front, what rims have the most durable braking surface? I'm halfway considering a drum brake hub, as weight is no object. Cost is an object however, so I'm unlikely to go this route. Plus, the front hub that I have now is fine.