I was taking off the footrests today (fitting a centre-stand). Started on the RHS where the top bolt came out, with some resistance, and then the bottom bolt started flopping loose. I managed to hacksaw off the bolt-head and then found that the nut, which sits inside the frame, (and was probably lightly brazed to the frame on the inside), is now just loose. So the question is - has anyone ever had this happen to them and, more importantly, how the hell to fix it, since there is no way to get insdie the frame where the nut should be secured.

HELP!!!