The Fresno County coroner identified the dead man Sunday as Dejuan Gladney, 18. The coroner didn't list a hometown.
Gladney and several injured people were found in the clubhouse, which is in an unincorporated neighborhood of Fresno County called Calwa. Another victim was on a nearby street.
Curtice said the injuries ranged from minor to "extremely serious." Authorities have not released the names of the people who were wounded.
Large gatherings of bikers descend on Fresno twice a year, once in the spring and then again in fall, the Fresno Bee reported (http://bit.ly/GEKzrW ). The gatherings frequently turn violent, the newspaper said, but police blame gangs for starting some of the violence rather than the bikers themselves.