I've read the posts but don't know where to start to troubleshoot the 80 mph vib. It a 3k mile 2014 bike, and has one tire weight , can I balance at home? some one said something about a Harbor Freight balancer. It does not seem to be a vibration on the handlebars especially but through the seat I guess because it's a visual thing, where all the terrain and trees are shaking. thought appreciated.