what bike has the least engine vibrations? I own a cbr 125 and the petrol tank and seat vibrate like crazy when i rev it too high 8-10k rpm so much so that i have to get up off my seat... I went to a dealer and sat on a ninja 250 and its petrol tank vibrates at idle... i am thinking kawasaki er6f or suzuki sv650 because i also need fairly low insurance cause cant afford insurance on cbr600rr. Any help appreciated. I am thinking sports bike and maybe naked bikes. Any help appreciated.