They can carry their own weight
No, they can carry about 2-3 times their weight but not that much, same as white horned owl which is strongest bird in North America. The condor can carry the most weight and can lift a small human like a baby.
Because they have to carry around more weight, and over time it becomes strenuous on their bodies. The human body is not meant to carry that much weight.
.044
2500
7
1125
Approximately half their weight.
in the region of 150lbs
FXDB 2014 Street Bob can carry passenger with weight of 7KG with hand carry while 20KG without hand carry.
2014 Dyna Street bob can carry passenger with weight of 7KG with hand carry while 20KG without hand carry.
not more then 210kg