Trails in Lane Cove National Park (e.g. West Pymble) weekday arvos or Sundays?

Im in West Pymble and am looking if there are any local riders that do the trails through the Lane Cove National Park. I ride reguarly and am keen to go for a quick trail after work.
Getting bored riding by myself as my mates dont have bikes they can trust on the trails.
I have footy training on Wed nights and play on Sat but would be keen to hit the trails untill the sun comes down most arvos if anyone's interested.

Carty