I have decided to try the 745 front on a 06 yz450f. I was wondering what others have thought of the REAR 745. I searched but found most talk about the front. I race mostly rutted turns with practice somewhat wet but dry by midday with watering throughout the day but not disked up. Central Pa MX. Just tried a Pirelli MXMH in the 90 front size and really didn't feel very good traction. ODDLY I popped on a worn 739fa and it felt better then the brand new pirelli even on my spun up field dirt practice oval. Slower turning and even less outright traction by the pirelli.