I don't know that this is aimed at me, but since mine was the only vibration-related post up to that point, I'm gonna go with it. Kirk at KRW is the guy I bought the bike from, and the one who tried to lessen the vibration. It'd be a stretch to say that Kirk doesn't know his stuff. He's got tons of experience, and could tell you what the valve clearance was on a 1973 Honda whatever. Tried the usual fixes to dampen the vibration, nothing worked. Not designed to be a street or highway cruiser, but marketed as a full supermoto-style street bike with lights, signals, horn, etc? Okay. The furthest I rode was from Lebanon to Hillsboro (about an hour and 15 minutes each way) on a Saturday. Hung my ass off the seat or sat on my foot most of the way home due to "discomfort". The blurring of the vision would kick in after about 15 minutes, and I'm guessing that it would've happened on a track, too. Can't lessen vibration? Counterbalancers do it. Honda had to ADD vibration to some of their Twins to make them more marketable. The 625 was a big single, and some of that is par for the course. I'm thinking that I just got a "Monday bike" or "Friday bike" as far as the engine build since everything else was above-par. Wish it would've been a Wednesday bike... Awesome bike, other than the vibration. Engine had more than enough power. More than once I came out of a store to get on it, and someone would be there looking at it. Tons of fun. Only put 2k miles on it in 2 years.