Clamp

Hey guys I just brought a new clamp as my old one would make my wheels unalign. I just brought my new clamp but they go on properly but the bars just slide off , wheel unaligns and you cant ride it its just that shit. Help?
 
K guys I tightened the shit out of it even more. Its not coming of but If I jump and land wrong ect the wheel is un aligning. Help?
 
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