Just had a vibration issue rear it's ugly head in my '92 fxr. I just removed the stock footboards and levers and installed forward controls. 2 days later I noticed a slight vibration on accel while going up thru the gears and on decell. The vibe begins after starting from stop and in all gears. will get 1/3-1/2 way thru gear range and vibration will start pretty strongly. same with each gear up to 5th. vibration stops when shifting but returns in next higher gear. not as noticable in 5th but I can tell it's there cause mirrors get blurry. And I don't hot rod my bike. Will also be noticable on decell in any gear. Just picked up a part from a local independent shop and got the "lead" tech to ride it. He said probably was always there but now is more noticable with the forward controls instead of the footboards....(edit). He said he spent 5 yrs at the local HD dealer so I decided he's been taught to say "feels normal.\, no problem found etc. I think my local dealer holds classes to teach the tech's this response. It wasn't there before the forward controls but I can't even imagine what they had to do with anything. Just coincidence is my guess. Any thoughts, opinions are welcome.