I put new bars on my '08 SB and it seems that there is more vibration in the bars. any suggestions?

 

What are you running for bushings? I run the polyurethane ones which help hold the bars in place when you are pushing it around and I'm sure they help with vibes...my bars are wide and on 6" risers and I don't notice too much vibration.

Also, maybe try tightening them down a little more.

It may be that they transmit the vibes more than your other bars due to weight or length and you are just not used to them.