Height will not increase the speed
Well done there mr obvious. Have a think about just exactly what I meant.
Clue: Look down, then go climb something and look down again.
Given the better vantage point regardless if the bike magically finds a clear straight road, he hits 270 and stays there, so long as the heli has a camera with a zoom function, there is a damn good chance said heli can direct ground units and maybe other flying units to provide cover.
You may outrun a helicopter, but you cant outrun a radio.
Thats not even taking account of the CCTV cameras on most roads nowerdays.