Are Z8s Really That Bad? - BMW K1600 Forum : BMW K1600 GT and GTL Forums
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post #1 of 80 Old 05-03-2015, 01:48 PM Thread Starter
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Are Z8s Really That Bad?

I know they have the well documented sudden end off life, but they seem to grip well. I can scrape my pegs with no worries and they have never given me any moments - and they steer pretty well whether one up or two up.

Has anyone got any real reason to not like them?

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post #2 of 80 Old 05-03-2015, 01:59 PM
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I think performance wise regarding grip in dry and wet they are excellent tyres. I can only get 3000 miles before front is out of shape as it "cups " badly and 3500 and they need replacing
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post #3 of 80 Old 05-03-2015, 02:32 PM
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I have my third set of Metzler - so far very happy. Tried Pirelli and Dunlop once: didn't like Pirelli in wet conditions, and Dunlop had a slightly worse handling on twisty roads IMO.
Others may have other opinions. I think it depends on a) your riding style b) your road conditions and c) weather conditions which tyres you prefer.
Dunlops may give you more mileage, but for me stability is more important, as I replace them early anyway - don't want to take any risks.
You'll have to try it yourself.
BTW: I make 4500 - 5000 miles with one set of Metzler, about 6000 with Dunlop.

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post #4 of 80 Old 05-03-2015, 03:25 PM
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The stock Metzler tires had a tendency to turn in on me. Only got 5k from them. The Dunlop's don't and I got 7k from them every time. Try different brand tires until your happy then stick with em.

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post #5 of 80 Old 05-03-2015, 04:39 PM
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My first post on this forum.

I've just had a demo K1600GT SE for 8 days while my 1200 GSA was having a new final drive fitted. The K16 had Z8 tyres and I was amazed at how agile it was, turning in quickly & effortlessly, holding a very precise line and hugely confidence inspiring both in the dry & wet at lean angles I'd normally be uncomfortable with. I only did 500 miles on it but was so impressed I hope to own a low miles SE model within a week and will take the existing Bridgestone T30 tyres off and replace with Z8's for my trip to Scotland the following week. To me, grip is far more important than how many miles I can get from a tyre. Having consulted my K16 guru who's now on his third K16, he gave the Z8's the thumbs up so I'm sold on them.

What an engine!!! A bike which is truly a wolf in sheep's clothing. Looking forward to owning one.
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post #6 of 80 Old 05-03-2015, 04:55 PM
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Z8s only have one problem as far as I am concerned. They have sudden wear syndrome.
Handling is good when new. I just can't trust them on a trip.

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post #7 of 80 Old 05-03-2015, 08:47 PM
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My front Z8 scalloped at 1000 miles and has howled ever since. I can't wait to get it off the bike.

Freedom is the miles I'm rollin' on!

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post #8 of 80 Old 05-03-2015, 08:51 PM
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Quote:
Originally Posted by iride4u View Post
Z8s only have one problem as far as I am concerned. They have sudden wear syndrome.
Handling is good when new. I just can't trust them on a trip.
+1, but it's easy enough to change them before I see cords- for me about 5k and change (don't ask me how I know) . So if I'm heading out on a long trip, I know that they need to be changed either before I go or during the trip when I reach that mileage on a set. The tires are so good in every condition that I'd rather give up some useful mileage on them than switch to a lesser gripping, lesser neutral steering tire. I tried PR4's and couldn't get them off fast enough.
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post #9 of 80 Old 05-03-2015, 09:29 PM
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Try Avons

Always bought Metzlers and usually got 15,000 plus out of them.
Also, they always cupped and never felt great around corners.
Read the forums and decided to switch to Avons.
Night and day difference. These types grip like tiger claws and so far (6,000 miles) no cupping.
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post #10 of 80 Old 05-03-2015, 09:49 PM
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They suck, 4000 miles on rear is pathetic. Left Friday morning from Eureka Springs Arkansas and rear tire looked fine. 200 miles later steel belt has showing down center of tire.
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