When I bought my Madone 5+ years ago, I opted for Shimano tubeless rims with Bontrager tubeless tires (I think Hutchinson actually manufactured them). I didn't have much trouble mounting the tires. But I could never get the tires to seat. I tried most of the tricks mentioned above with no success. I don't own a compressor, so I bought a special pump that's supposed to deliver a large rush of air to seat the bead. That that didn't help. Switched to Hutchinson-branded tires - same result. I would have to go to my LBS and have them mount the tubes with their compressor. Even then, they would have to use a port closest to the compressor itself or the beads wouldn't seat, I guess due to the pressure drop in the satellite ports. Based on the above, are the Shimano wheels the culprit? Sounds like most people with Mavic rims don't seem to have the issues I had. I still ride the wheels, but I run them with tubes. Wouldn't mind going back to tubeless if I could mount the damn tires. Thoughts/suggestions?