if they weren't allowed to chase bikes no one would ever pull over, they would be declaring over a loud speaker that wheelies in traffic are now legal, doing 180 on the interstate is now legal, you no longer need insurance or license plates or registration and riding a stolen bike is legal, if you knew they couldn't chase you all you have to do is just not have a license plate and every time someone tries to pull you over just keep going

and you might be caught up in the moment but you always have the option of ending it yourself, if you don't, they most likely will, a friend of mine ran for a short bit, then decided it was too dangerous and pulled over and waited for the cop and took the punishment, so it is always an option