I have a 09 classic wich i love. I have done some upgrades including progressive front springs and 440 rear shocks but still in sweaping cornors at speeds over 70 or 80 the bike wants to dip down and up when leaning. the faster the worse. Had the dealer look at it and was told everything was good. changed front tire under warranty,rear is half wore but did this last year. thought the new frame and updates was to cure that problem. any ideas?

 

What fluid are you running in the forks?