Here at RideApart we like to try to keep you abreast of all the latest trends, for good or for ill, and friends, I am here to tell you that this one is not that new, but it is, in my opinion, an ill one. Do or do not, but in this case, I’m going to tell you: do not. A few years ago when a friend of mine got wind that I had access to a pneumatic tire machine, he asked if I would help him out by spooning a new tire onto the rear wheel of his Honda VTX. Sure, I said. I am nice like that. So he brings the disembodied wheel to my old shop with its smoothed-out rubber and in the other hand he has a … a car tire. Friends, I can tell you this through my shame: I did it. I put a car tire on a motorcycle. Worse, someone else’s motorcycle. This is what’s referred to as “Dark Siding”: that is, mounting a car tire on the rear wheel of a motorcycle. The good news is, the swap (once I got that used-up stiff-as-hell heavy-bike cruiser tire off there) went really easy. Do you know why it’s so easy to mount car tires? That’s the bad news. Car tire sidewalls have zero integrity. None. And that means they’re super easy to mount—you can toss them on the rim and get the first bead on by hand, ...