I have changed many a bias-ply tube tire (pinched many a tube in the process). It takes some good tire spoons and a lot of effort/sweating/swearing forcing the tire into the center drop of the rim. But I have never attempted a low sidewall radial tire on a cast rim. Until now. I saw videos on youtube of people changing wide low aspect ratio radial tires using zip ties to squeeze the tire beads together which is a way to get the tire bead ID just larger enough to require much less effort off and on the rim. So today I changed the tires on my BMW R1200RT, dismounting Michelin Pilot4s and mounting Metzeler Roadtec4. The rear tire is a 180/55-17R, fairly wide and a low sidewall profile. I got the wheels off the bike, removed the valve core, then used a Harbor Freight bead breaker to squeeze the old tires into the drop of the rims. Then I routed 24" heavy duty zip ties through the gap of the tire to the rim. With six to eight zip ties to bring the beads together, and with only two tire spoons I got both beads of the tires off the rims with FAR less effort than even older style bias-ply tires. Then I zip-tied the new tire beads together and got the tire well more than halfway onto the rim with only dish soap for lube and my hands/knees to push the tire onto the rim. With the beads pulled together I was able to lever both sides of the tire at the same time fully onto the rim with minimal effort using two tire spoons. Once the tire beads are over the rim, I could easily position the dot on the tire as needed. Then I got the zip ties out, and pumped the tire up to pop the beads into the rim. Easy really. Of course I had to static balance the wheel/tire assembly, for which I used a Harbor Freight tire balancer. Until I tried this I was skeptical of the zip-tie on youtube. Now I'm ready to change the tires on my Vulcan VN1600 Classic. If you're the type to prefer to do your own maintenance, its worth trying.