I'm getting a high frequency vibration through the pegs and handlebars. Seems to get worse with higher RPM. Bike speed doesn't matter so I doubt it's the tires. Any ideas?

 

I don´t know about the pegs, but my F4i is a 2006 with 1400 miles from factory and the vibration in handlebars is really bad!

I don´t know why !! But now I have a tunel carpeano syndrome in my hands because of that and the computer´s mouse!!!

Cheers[X(]

 

Might try using polyuerethane bushings. I know they have poly damper kits for cruisers, but not sure if it's available for sport bikes. You can check your steering assembly and see where you can replace the stock bushings for polyeurethane ones.

Might also check if the same concept applies to the engine mounts. Just a thought....