Gald to see you here on the site! I agree that the 14" looks awesome, my dad has an 07 Grizz 660 with 14" ss112's and the 27" XTR's and is SWEET! As for handling and performance, I say handling is a little better and ride is a little better with the radial, comapred to my mudlites. However, you will lose some of you bottom end power since you are going to a bigger wheel and tire, and it wieghs more. You can do some other mods and gain you power back if it is that big of an issue for ya! I say "GOPHER" the 14's you will be very happy!