Pirelli MT90 Advice

[$CENSLS1$]

Hey guys and girls, was hoping you could all shed some light on something for me.
When I first got my bike (KLX250) I fitted a set of Pirelli MT90 ATs and they have lasted just on 7,000ks and have been a great tyre on both the road and gravel roads which I travel along most weekends.The front is still in quite good condition but the rear is getting really low in the centre and starting to lock up quite a bit on the loose stuff so I thought i'd chuck some more tyres at it.
I was thinking about trying the MT90 ST which is a little bit more road oriantated for the front and keeping with a MT90 AT on the rear. I was wondering what you guys think would be best and if any of you have had experience with the MT90 ST please let me know what you think of them.

Any help would be muchly appreciated.
Thanks
Garry

http://www.cycletreads.co.nz/content...l&entryPK=2170
http://www.cycletreads.co.nz/content...l&entryPK=2169

[tri boy]

Check out the tyre thread in the adv forum. Heaps of advice there.