New hubs ??? I wouldn't even bother.....MT60's are 90% street 10% Dirt.
Diablos, I have recently found are the preferred tire with Metzler Sport tecs in 2nd place. These tires are 90 % Street and 10% track... ZR Rated that heat up quickly on smaller lightweight bikes.
These Bikes we own are big and heavy in comparison to others, our bikes are spectacular for around the street and fireroads etc. the boys on the track run bikes that are 240 lbs. I am going to start taking my bike to the track to see If I would enjoy it and get better... If I do I will keep my MZ for street and get a KTM 525 or something to race.
I'm not cheap but there are some things on our bikes that are really good, why change things for the sake of change...... If you ride street only get Diablos, If the bars aren't quite right get Pro Tapers, the exhaust system is huge change that, rear light fender sucks change that, get bark busters and sliders If you are really aggressive on the street.....You don't ride the HWY change gearing so you can do 2-3 gear wheelies.....want a better look to your bike change mirrors, headlight assembly, pull off the blinkers and flush new ones in etc etc etc ......