new to yamaha, always ran doo's my yamaha experience has been great 1600 miles, but i put 180 1.325 woodie megabit doubles tall nuts down the middle and notice a viberation at around 60 and gets worse the faster i go i was wondering if the ballon effect from only having studs in the middle. nothings hitting, checked idle wheels, all are good. ran this combo on last 3 doos one 192 down middle other one 144 and had no problem. i rode a 06 gt and didn't notice it but its short track and singles all the way across. like studs though for traction, not sure what to do, any suggestion