I had my stem swapped today (SRAD with FZS stem) and the lower bearing was being a pta, heated the bearing cooled the stem and still wouldn't go on easily, I hit it, stared hard at it, everything when I had an idea. Took the original bearing lower seat and turned it upside down, perfect fit, large surface area to put the drift on and less chance of damaging the bearing should I slip. With bearing in place a quick tap with hammer and drift knocks the bearing lower off the stem and bobs your uncle.
I also used the original bottom yoke as a slide hammer, it obviously fits the stem so with the bearing lower in place it was just a question of hammering the bearing into submission
Now for the twat of a lower bearing outer race........
