Felt it in the foot pegs depending on the road surface. Thought it likely because my rear tire was worn after 18000 miles. Final drive is well maintained, lots of paste, and oil changed this spring. Removed rear wheel for the tire change and checked left rear bearing, it felt rough and center was a bit sloppy. I'd ordered a spacer from Grumpy for the double bearing mod as well as tips for my truck stacks. Took new Metzler and wheel to local garage mechanic. Changed tire, and installed double row bearing. $20 . So pleased I gave him a $10 tip. During install of tire I put in Dyna beads. It took about 1/2 an hour for both. Installed back home and took her for a run, smooth as silk. I find Grumpy's tips give my exhaust note a more refined sound, kinda mellow and they do give the truck stacks a more finished look.
