Originally Posted by
colnago62
According to the person I talked to at Wheels Manufacturing, weight and environment have a lot to do with how long press fit bearings will last. If you are larger and ride in wet weather, the life of your bearings will be shortened.
Genuinely curious - why would these factors affect pressfit more than threaded BBs? Even threaded BBs use bearings that are pressed into alloy cups, which have threads in them.