Dyno for bikes, help

Need some pro help from you lot please, is there a dyno for bike around sydney somewhere, I wanna test my bike cause the other day travelin on a road where there was a speed camera an I got flashed and I immediately lookd at my speedo and it read 58 ks an hour,
we all know it cant be the camera because its perfect you know the rta is never wrong
even if the camera's faulty and I got jack chance provin it ( money hungry bastards ) its still realy odd if my speedo is out by lets say a coupla ks, cause don't vehicles have to b travelin at least 10 over for it to flash. I will only know if I test it on a dyno
much appreciated


much appreciated