Are you a Biker....
its not what you ride, its that you ride.
that being said, i've got a 74 honda cb200t. granddad bought it new after the kids were gone. grandma didn't like him riding, so after a few months it got put in the back of the garage. 34 years later, and its mine. rebuilt the top end cause the rings weren't doing their job anymore. now i just adjust the valves every so often, check and adjust timing. just like a car, only smaller. so i've done all the work on it myself, but definitely dont consider myself a biker, just a gearhead who has a bike.
as an aside, everyone who enjoys wrenching should definitely read 'zen and the art of motorcycle maintenance'.