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Help with bar vibration!!!

1.4K views 12 replies 6 participants last post by  evilrider  
#1 ·
Just installed my Punisher bars. Rode them for the first time just now. A crazy amount of vibration. Is this because I tightened them too much???

Any ideas or solutions?

My best guess is the bolts are too tight. I can't check till tomorrow so anyone else have this problem???
 
#3 ·
Off the top of my head, you torque them to 27 pounds. If you check my blog, I blogged how to do internally wired bars and it's there.

The other problem is if your bars are rigid against the trees, you'll get all the vibration from the front end. You need to ensure that the stock rubber washer is still between the trees and the bars.

If the bars do not have a flat surface for the bottom of the risers -the threaded portion is indented slightly- then you need to put the proper size washers in there until the bars stand just proud (barely not touching) of the triple trees. then you put the rubber washer between the trees and your inserted washers. Some bolt sizes require you to drill out the washer slightly.

If all of this doesn't work, there are more drastic measures we can suggest.
 
#4 ·
I have had the same problem for a while now. I read the threads saying to put the rubber washer between the bars and trees so i bought 1 1/2in od rubber washers but then i saw threads sayin it had to be sitting off the trees so would it be ok to have a rubber washer against the trees then a smaller one to fill the indention? Or do i need to just put 2 small washers and leave a gap between the bars and trees.
 
#5 ·
The rubber washer lays on the trees. If you don't need the metal washers, then the risers sit on the rubber washer. If you do need metal washers, they they sit on the rubber washer, and the risers sit on the metal washers. the point is to insulate metal from metal. That way you won't have road vibration running up the forks and straight into your bars.
 
#6 ·
Ah...I see. As of right now they are just sitting on the rubber washers. I went riding this morning and it seems like the vibration has let off a bit almost to normal. They may have just started to settle into the rubber washers now. But just to be safe I think I'll throw in a couple metal washers between them as there is a small space between the inside of the risers and the rubber.
 
#7 ·
They're supposed to sit on the rubber washers. The problem is if your risers are oversize (1 1/2 inches) then the riser completely covers the rubber washer and is still sitting on the trees as well. So the washer alleviates that. If your is sitting properly centered on the rubber washer, it should be good. It sounds like you just overtightened it. Rubber can only compensate so much. The bars are actually supposed to be able to move a bit.
 
#8 ·
Also you could put something inside the bars to wieght them down. I have seen threads about fishing weights, bbs, and snake wieghts. I would make sure you have the proper torque on the bars. I added an extra thin rubber washer and it helped.
 
#9 ·
Since its olny getting torqued to about 27 ft/lbs im assuming i should put some blue locktight. My friend is the one who put the bars on so this is goin to be my first time goin in and taking them off. I just want to make sure i have everything planned out before i tear it down. Im just going to put a small metal washer to fill the indention in the bottom of the riser and then put the rubber washer between that and the trees.