The 'cups' in the bike frame ..
a) Special tools can be had for this - basically a sliding hammer with a fitting on teh end - an expanding thingy that locks onto the cup.
b) Another way is to shrink teh cup - run a stick weild on the race face .. wait for weild to cool and teh bottom one will fall out -- the top one will come out easily now. Be sure to wrap the outside with a damp cloth .. do not burn the electrical wires .. nor the clutch cable ..
The bearing in the lower triple Tee ...
a) Use a 20 ton press to partly remove the stem from the triple Tee ... then reinstall stem into triple Tee. .. leaving the bearing sitting up free .. remove bearing.
b) Cut the cage and rollers away .. use a dremel to cut the surface - at say 90 degrees intervals (only 2 really required .. but 3 makes it easier) hit with cold chisel and hammer to break the beaing up.
Method A is the workshop method. Method B is not the recomended way .. but people do it.
Regards Frank Warner
motorcycles BMW R80 G/S 1981, BMW K11LT 1993, BMW K75 G/S