Is this only for "Inline Skaters"?
We welcome all kinda folks, inlcuding skateboarders, bicyclists, old-school "quad-skaters", and we even had a guy come out on a razor scooter once... he didn't come back but still, we were glad to have him show up once anyhow. I know a guy who said he wanted to come out and run with us, but he never did.
As a rule, bikes won't have much trouble keeping up. Skateboarders fare better if they're the longboard types, but they usually only come out on the downhill runs, like the Noho, Hollywood and Pasadena to downtown LA routes.