Funnily enough, that's what I've got on mine at the moment. I've used them on and off for the last ten years. They are an excellent tyre and well-suited to the XTZ. They grip and handle well, wet or dry, with excellent feedback. They are OK off road if you avoid anything muddy, ideal on gravel/sandy trails. Much better on road than a TKC, but not as good off it. But there's a catch...

You'll be lucky to see 2000 miles out of the rear and they aren't the cheapest! (They also drone a bit at certain speeds.)

If you can afford to change the rear three times a year, then they are IMHO an excellent choice for the Z. If you're financially savvy, then look elsewhere!

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