Nope never!!!....Had a close friend years ago that got killed doing this to be "silly", let go the bars to show off and he lost control of the bike as the front end started to wobble and down he went at over 40mph...He also was not wearing a helmet....May sound unusual to some, but I see no need to take my hands away from the bars while moving....Granted I may have loosened my hold on the grips a little at times, but always kept a least one hand on the bars.....Regards and ride safe