Sticky tyres for 1998 Fazer?

[Arfa]

Had almost 2 years and about 13K out of a Metzeler Z6 on rear of bike. Still got a tread left for a few more months, but is a bit squared off. Got a Z8 on front, just over year old and done about 7K, loads of life left in that one. Either way, I thought that was pretty good going longevity wise. They've felt reasonably grippy even when hooning it around the twisties in the wet, only twitching at back when really pushed in wet.

BTW There's currently some deals on: Michelin are doing £35 cash back on a set of tyres (or £15 on one tyre). Metzeler are doing a £50 Dianese voucher on pair tyres.