My rear Mitas E0-9 has done prob about 4k and is pretty dam worn now! more troubling though is the amount of blocks that have cracked and lost bits...oh and the cracks in the actually tire carcas!
over all i think there good tyres, pretty good off road but once they start to wear the off road ability drops quickly.
ive used an MT21 front and liked it. It was good on and off road, i had a T63 before that i thought the MT21 was way better off road.
while on a recent trip to "phil in France" house a lad had a TTR600 with MT21's front and back. He rode from Edinburgh to Payrac & back with off roading inbetween and said they were great.
running a army special front at the mo which i think is brill, not great on wet roads though. would like a Mitas C02 rear but on wet roads, with some luggage...i think those tyres may be too aggressive.
views on MT21 rear for Tenere? what terrain do you ride?