Slipping handle bars.

[ValkyrieRider]

My hanble bars are slowly slipping down. I have tightened them. But they continue to slowly drop after hittting a bump. I have risers on them. Does anyone have any ideas how to stop this with out having to replace parts?
Thanks Eddie.

[fudgie]

Is it the risers itself or them and the top triple tree? Could slip a small pc of rubber on the bars and clamp it down.

[ricoman]

The bars should have a knurled portion that fits in the risers to prevent this.
Try inserting a tiny piece of emery paper under the bars and the tighten till it hurts.

[Robert]

I use feeler gauges cut and put there and if that doesn't work drill a hole and put a bolt in it.

[bigdog99]

there was a post the other day that showed a set with a crack in them on the under side. 

[PatrickDoss]

Make sure you tighten the upper bolts on the clamp first (the ones with the dots), then the lower bolts.  This can make a difference.

[Ricky-D]

It's probably cheap aftermarket risers that's causing the problem.

You will not have that problem with OEM.

You can drill through from the cap top and pin the bars but that at most is tentative.

***

[98valk]

Make sure you tighten the upper bolts on the clamp first (the ones with the dots), then the lower bolts.  This can make a difference.

+1  this is per the technical manual

[junior]

wow...............

take the caps off one at a time and file the mating surfaces where they meet the risers this makes the hole where the bars smaller and will bite the bar better and you wont have the bolt or pin to look at.

this method has been done for years on driveshafts on heavy truck u-joints to tighten the bearing caps with full success and no failers.

[R J]

My hanble bars are slowly slipping down. I have tightened them. But they continue to slowly drop after hittting a bump. I have risers on them. Does anyone have any ideas how to stop this with out having to replace parts?
Thanks Eddie.

Take the cap off the riser, wrap 2 turns of emory cloth around the handlebar, reinstall.   I should never slip again unless your two pieces are not of the same diameter, like 1 7/8" bars in a 2" riser.

[TearlessTom]

If your like me and to cheap to spring for the Emory cloth you can use a soda/beer can. Cut to proper width and wrap in direction that it would tighten when the bars slip down. (like a watch spring). Should not wear out like I would think Emory cloth could.

Just my $.02

[R J]

If your like me and to cheap to spring for the Emory cloth you can use a soda/beer can. Cut to proper width and wrap in direction that it would tighten when the bars slip down. (like a watch spring). Should not wear out like I would think Emory cloth could.

Just my $.02

Tearless Tom, I don't think you and I are talking about the same thing.

You put emory cloth in there, tighten it down and there will be NO movement to wear ir out.    We buy it by the 50 yard roll for the shop.    Send me your address and I'll send ya a couple of pieces.

[ValkyrieRider]

Thanks for all the reply's. I retightened the clamps based on what was posted here. Will wait and see it the movement stops. After that will try the emery cloth if neccesary,
Thanks Eddie.