Yup, that's all that holds the the rear end of your Harley Davidson rubber mounted Sportster together. From the pipe side of the bike the rear mount looks solid. From the other side, there's too much in the way to really see anything. But with the motor out of the bike the weak link is very evident. Remember now, the swing arm pivots through this part of the engine case witch of course holds up the back of the bike. The factory may have saved a few bucks casting it like this but, I sure didn't. Needless to say, this motor was removed from the frame without removing the swing arm at all.
The good new is, the transplant went very well. The patient will spend a couple more days in intensive care before making a full recovery.
