Tyres

Can somebody compare Pirelli sport demon and bt45s in terms of mileage and grip. I'm currently using bt45s. I have done 7.5k miles on the rear and it's done in the middle. And maybe around 10k miles on the front and it's sides are scrubbed off and the bike is not stopping as it used to, missing the apexes. Although the front has material left in the middle, looks like the good compound is gone , what's left isn't grippy enough. I have only used mtzeler lazertec before, but these were more about longevity IMO, and I wasn't as aggressive as now.

The sport demon is much better.
Whilst working as a courier I convinced the manager to switch the tyres on the fleet of cb500's to change from BT45 to the sport demon and they were preferred by all the riders and also worked out cheaper due to the longevity of them. 
You won't be disappointed.

Cheers mate! Ordered front and rear for 160 quid. See how the grip is, the bt45's had good grip but wore down the rear mid season..