Out riding today and came up on a clear straight road and hit it, got up to 178 before I had to let off. I have done 180 before. I dont feel the bike has a lot left just guessing 185. I weigh 230 and had a givi trunk on back but next to nothing in it. The bike was in traction control 1. My bike has full brocks pipe with a guhl flash. Drop the trunk and leave traction control off and maybe a little more, I think it was slightly uphill also. Does not really matter 178 or 180 is plenty fast. I like the acceleration of this bike the most. What is everybodys experience with this, asking heavier riders specifically?