I've been to the Love Ride up in Pomona which as far as I've understood is the biggest motorcycle gathering in California.
I went with Helena, a fellow Swede who also drives a motorcycle (Off course she fit in better since she has a Harley)
There were a lot of really nice bikes. Mostly Harley's or even bigger bikes, some to the point of being completely ridiculous.
I also saw Foo Fighters and ZZ Top who were playing at the even. Really nice to spend a day in around 30C (90F) temperature even though it is almost November. Gotta love the weather of this place.
I have some more pictures of the event over here.