Ok I really think the guy who balanced my new tires put too much weight on my marchesinis. I have this annoying vibration all over and up and down feeling from the rear now. the bike isnt as tight as it used to be in the corners now. I dont feel 1005 confident on it like i did before. I have gone over all the nuts, bolts etc... myself and cannot find anything out of the ordinary. Could it be these weights? i've never had weights on these rims before. I also am really feeling the bumps in the orad now too way more than i used to, i become airborne sometimes if its a big enough elevation change. I havent touched my supsension since i had it set-up for me. so i know it was nice a smooth before.