I got the Orlieb's (for Father's Day ;-). They seem really well made, and are infinitely adjustable to fit any rack, I would think. After a little fiddling around, they fit my rack quite securely. The only thing I'm not too sure about yet is the "roller" aspect of these bags... i.e. you have to roll down the top of the bag a few times before securing it to some clasps. I was playing around without a load in the bag, so this might work a little better with at least some stuff in the bag.