you can get it on there, but be prepared to swap the stock bolts for low profile button head style.

Well, I finally got the 150/90-15 mounted in the rear, and it is definatley a tight fit.  I couldn't get the bolts in the rear fender to rub while rolling and bouncing hard on it, but just to be safe, I set the shocks from the middle setting up one.  The other place it was close was in front of the tire in the middle of the swingarm.  I haven't had a chance to take it up to speed yet, but I didn't rub going over the speed bumps in the neighbor hood.

verslagen1 wrote on 05/03/12 at 22:07:04:




Unless you follow that bike & watch it go thru the gears, youll never see how shocking the gyrations that fender goes thru at certain RPMs & torque loads are, IIRC, It was in 2nd or 3rd ( my girl was leading, I was on the Guzzi) & I saw that thing whipping back & forth in what looked to me to be an impossible vibration. I never felt it when I was riding it, but I saw it.,Now I understand how the license plates crack,

Well, the tire did rub.  Not on the fender, but on the center of the swing arm on the right side.  It seems that centrifical force (Think top fuel dragster) causes the diameter of the tire to increase at speed.  I ended up pulling the rear wheel, and grinding the weld smooth to gain the clearance.  I don't know why, but the factory weld was almost 3/8" tall on the right side.  I touched it up with some black paint meant for wrought iron fences.  While I had the grinder out, I took down the fender bolts to about  1/4".  So far, no more rubbing.

Sorry, WD, not whitewalls, but I did get the raised white letters (Bridgestone Spitfire).  As far as advantages vs. disadvantages, I don't know if I'd go that big again.  The handling is different, but the old factory IRCs were worn flat(bald) in the middle.  There is definalely a power loss, but the tradeoff is that first no longer feels like a tractor, fifth almost feels like an overdrive, and the motor isn't spinning it's guts out at 80mph.  I will have to be careful with my speed, as I suspect the speedo is off.