I just installed a Bridgestone Driveguard run flat tire (195/55 R16) aired to 42psi. It was a bit snug mounting the wheel and tire. I had to loosen the clamps and remove the one hanger bolt on the left muffler to get the clearance I needed. I have a motorcycle jack so I could raise the bike a foot or so off the ground. I first took the bike for a spin w/o the trailer and it was quiet and smooth. The tire dealer did not balance the tire because the wheel didn't fit his machine but it obviously didn't require any balancing. Next I hooked up my Aspen camper trailer and it rode as straight as an arrow down the freeway. I never bothered with tongue weights or adjusting the load. I would say that the tongue weight relative to the total trailer weight was well over the 10% suggested by another forum member. I am truly a happy camper now.