Not only is this not correct, I would have thought it was impossible to do! As a guide, the end of the bar should be flush with the plastic plug protruding, but it 'should' be impossible to get wrong!
I assume you have standard bars! Each bar is held in the clamp by two bolts which are located at the front of the clamp. The outer bolt of each side only passes through the clamp and does not 'locate' the bar. The inner bolt however, passes through a groove in the bar and unless 'butchered' will not go into position!
Also, further inboard and underneath the clamp is a large-headed, smaller bolt which screws up through an extention in the bar to fully locate it and most importantly, to stop the bar from rotating!
This link shows the assembly in the RealOEM parts list, although it appears to NOT show the large-headed, small screw (but it does show the bar extention through which it passes).
http://www.realoem.com/bmw/enUS/showparts?id=0508-EUR-08-2012-K40-BMW-K_1300_S_0508,0509_&diagId=32_1508Helibars do NOT have this extention and rely on the groove in the bar being a 'straight' cut (rather than a radial groove) to prevent rotation.
If you have standard bars you should check that all three bolts are correctly fitted on both sides!
As an afterthought, are both plastic plugs present?
Brian (who has had his on and off a squillion times and can't see how to get them on 'wrong'
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