The legal citizen Hispanic population in California is enormous. Any random group is bound to look more or less like this one.
As for crime, it's hard to tell. They could be controlling the drug and gun traffic of the state, or they could just be a bunch of guys with ordinary jobs who like to ride on the weekends. My guess is more like the second.
When it comes to traffic violations, though, that's another story. They lose members every few months to accidents. Mostly reckless driving on their part, I think.
I guess we can look at things relatively here.
Would we rather have bikers stunting on the highway and occasionally dying in it, or dealing drugs. If it had to be one or the other, I’d take the stunting. Better that it be neither, but still.