Not really, Tom Sykes said on Eurosport recently his braking marker for the esses at Snetterton was the 200m board and given the speeds involved there wouldn't be huge differences between SBKs and MotoGP bikes, better brakes yes, but higher speeds too.

So 200m would seem about right. Contrary to what some believe bikes brake far earlier than cars which also have higher corner speeds mid-corner. 4 wheels = 2 more wheels to brake and grip with. Of course bikes soon fuck off into the distance on acceleration though and that more than makes up for the corner advantage, unless we're talking F1 cars of course.