88bmwjeff
SF Bay Area
My 1988 R100 RT has sealed swing arm bearings. I think I know the answer to this, but I thought I'd ask. I had the swing arm bearings replaced about 15,000 miles ago and I didn't expect them to be bad. But, when I checked them, there was a lot of side to side play. That would be a side to side (left/right) with the swing arm on the bike. If you were staring down at the bearing in the swing arm, it would be an in/out or up/down play. I hope I explained this well. I don't there should be any play whatsoever. I really thought the bearings should last more than 15,000 miles, but if they're bad--they're bad.