The standard bolts in that position use 25.5lb-ft. That's a lot for those size bolts. I'd suggest putting some blue Loc-tite on them and reducing the torque due to the lubrication effect of the wet thread locker to 20lb-ft.
Just got back from the test drive. My hands are still tingling. At about 80mph/6k rpm I could feel the vibration all the way thru to my hands. It's real. I think these are coming off. I'll have to go digging to see what has worked for guys.
I had three sets of these on two different bikes and none of them had any kind of vibration. Check the spacer in the front(the black piece that slides into both sides), where the two sides are joined, and make sure it is tight and you can't spin it or move it back and forth. On both newer sets, that spacer was loose, even with the bolt tight. I had to grind down the bushing that the bolt goes through so they would actually squeeze the spacer. Just something to check before you go through all the trouble of sending the bars back.
Thanks pants, I see what you're talking about. My coupler wouldn't rotate, but it was only the bottom of the two pipe sections that were touching the beveled portion of the coupler. If i shortened the bushing, it should allow it to pull the whole pipe section onto the bevel. You know what i mean.....
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