Squared Metzler M6 - how to scrub off corners?

[fishb8nz]

Bike BMW CS650 - tyres about 12km old. I mostly commute but like a ride on the backroads ( Coro loop/King Country).
I know the best way to remove the shoulders is to do some serious cornering but.. The rear still has plenty of rubber but is definitely squaring off. Can they be scrubbed off to get rid of the shoulders?

[riffer]

Shit happens mate. The amount of commuting you are doing is way more than spirited riding. Therefore the tyre will square off in the middle leaving the sides relatively untouched.

It's irritating that sometimes you have to change a tyre when there's still some tread left. But the irritation is far outweighed by the joy of the new tyre feeling.

So to answer your question; yes - the corners can be worn off. You've already answered your question. Go for a spirited ride!

[carver]

But the irritation is far outweighed by the joy of the new tyre feeling.



or the joy of a burnout

[Taz]

If you're only commuting you should be able to find a low profile 17" car tyre that'll fit and then you have no shoulders and they last about 50,000kms.

[AllanB]

Throw it away - and when you fit the new one ensure you do plenty of hard-out corners :banana:

[mashman]

What you require is a BIG roundabout... The only problem occurs when trying to round off the left side of the tyre!!!

[fishb8nz]

BTW - what is this "scalloping" cos in a new thread someone says about this, well my edges are scalloped, too?

[Kiwi Graham]

No is the answer.
Next time buy a duel compound tyre....harder in the middle and softer at the edges. Michelin pilot road 2's are the best in my opinion.

[doc]

I just went thru this recently. Decided to try and get a bit more out of a tyre than usual. Just finished the Takaha Hill and starting the ones out of Nelson to Picton. Goblin passed me and signalled to pull over. These are Z6's. Wont be doin that again.

[AllanB]

I just went thru this recently. Decided to try and get a bit more out of a tyre than usual. Just finished the Takaha Hill and starting the ones out of Nelson to Picton. Goblin passed me and signalled to pull over. These are Z6's. Wont be doin that again.

Sparks were flying off the rear tyre then!

Personally I avoid tyres that are treaded in this manner for this exact reason, you cannot realistically see when they are worn beyond their limits in the centre. I've seen a lot of bikes with Z6's worn past the safety point in the centre (edges look fine) so don't feel too bad.
If they had a strip of say red rubber or cord at the wear limit that would be good.

[Maha]

BTW - what is this "scalloping" cos in a new thread someone says about this, well my edges are scalloped, too?

I have that happening on the rear also, 5000K's old, have asked two different people their opinions on it, will put a PR2 on it soon as me thinks.


No is the answer.
Next time buy a duel compound tyre....harder in the middle and softer at the edges. Michelin pilot road 2's are the best in my opinion.

The rear tyre on my Triumph was in that shape (thread topic) when I bought it, asked the bloke at Cycletreads about it, he thinks it happened maybe because of low tyre pressure, I put PR2's on both front and rear and think I will do the same to the Honda. The Dunlop Sportmax has gone all weird on me.

[fishb8nz]

Had a good look at the tyre and it's definitely showing signs of wear.
I thinkConti Road Attack or Michelin PR dual compounds, will be next.
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[fishb8nz]

As I took the photos, I saw the recommended pressure as 42psi. The BMW recommendation is 35.5 psi. So off to the garage and pump up the pressure and found both tyres were well below the BMW figure.
Went for an hour ride, this afternoon, and the bike feels so much sharper. New tyres won't be too far away but there's a couple of months worth still in them.

[AllanB]

As I took the photos, I saw the recommended pressure as 42psi. The BMW recommendation is 35.5 psi. So off to the garage and pump up the pressure and found both tyres were well below the BMW figure.
Went for an hour ride, this afternoon, and the bike feels so much sharper. New tyres won't be too far away but there's a couple of months worth still in them.


If you mean the writing on the side of the tyre says 42psi - this is a maximum air pressure in the tyre fully loaded - quite different from what the maker sets forthe bike. Go by what BMW say.

[Shaun]

Had a good look at the tyre and it's definitely showing signs of wear.
I thinkConti Road Attack or Michelin PR dual compounds, will be next.
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I will do you a set of Continental Road Attacks at my min mark up for you to show you just how good they are!

You would need to get them fitted in Hamilton though, as I am in New Plymouth

PM or call me if interested

[Taz]

Fish - Is that tyre the correct size for the bike? Should be 160/60x17.

I like the road attack grip but they cut out in the middle quite fast on the Ducati. And that's with no commuting and nice twisty road riding albeit at pace....

[Shaun]

Fish - Is that tyre the correct size for the bike? Should be 160/60x17.

I like the road attack grip but they cut out in the middle quite fast on the Ducati. And that's with no commuting and nice twisty road riding albeit at pace....


And I would bet the main reason is your bike is riding way to low in the suspension stroke ( Spring rate and or pre load incorrect for weight) causing the tyre to over heat to much, causing exsesive wear

[Taz]

And I would bet the main reason is your bike is riding way to low in the suspension stroke ( Spring rate and or pre load incorrect for weight) causing the tyre to over heat to much, causing exsesive wear

Maybe. But only happens on the road attack. Only get around 5000kms outa one.

[Shaun]

Maybe. But only happens on the road attack. Only get around 5000kms outa one.


what PSI were you running in them? That has me slightly baffled with out knowing more man, I have a mate on a triumph 1200 that has done 8500 already and still going ok