My first set of Zeons did me for 45k, this was when i was doing my most mileage too
Included 2 track days, one at Castle Combe and one at Croft. Currently running my second set, which have already done twice as many laps of CC than the others did. At £112 for 255/35/20's they're a bargain too.
These are very good in the dry, and don't make me break into any form of perspiration liquid when driving in the wet either. Very impressed, can happily recommend them. Have heard good things about the Falken F452's as well though