Six years ago on the second day I owned this bike I "dropped" it. More like a slow settling at a stop. At any rate the mirror broke away but the back of the mirror shell separated from the front. It looks as though it must have been glued at the factory. If so, what did they glue it with? The material looks to be ABS so I tried some ABS glue but it didn't hold. Any suggestions as to what glue will give a good hold?

Also how would one go about clamping the whole works together since there are no flat or parallel surfaces?