This has to be coming from someone who has never actually tried to do that.... There's a reason tires don't come spinning off at 100+ mph, the belts around the beads of the tires are VERY strong. Try cutting an old tire (that's off the rim) and see how easy it isn't. Thanks so much for all the posts here, unfortunately I found this post the day after I changed the tires on my '05 GS. I've done a few tire changes so I knew what I was doing though. Did have a tough time breaking the bead off the rims and was all set to run to Harbor Freight for one of their tools when I stumbled on a YouTube video of a guy breaking his beads using the 2x4 method, it worked like a charm. Only used (1) 5' 2x4 and (1) 6" piece of 2x4 (not even attached like the OP has it) and leveraged it under the trailer hitch of my SUV and was done in under a min. Worked great! Found it: http://www.youtube.com/watch?v=DNrhMUPxI3o Will be getting Marc Parnes adapter for the rear wheel ASAP, thanks again for the info.