I gave the 550 a solid ride this weekend. Something I noticed: on deceleration without braking between 49-45, I get some head shake/bar shimmy if I don't have a solid grip on the bars. The wheels are balance, no crash damage to the frame, newly rebuilt forks and new wheel and newer steering head bearings (1 year old). Nothing violent or dangerous, but a little odd. I don't think the Tarozzi fork brace is causing it. I was thinking of installing a steering damper just in case.
Opinions??