What caused this

I Was at Snetterton all day yesterday and after the final session (fast group) with the instructor (Alex) leading the way, the rear tyre has scared along both edges.... I was told I was not going fast enough ([emoji849]).

However has anyone seen this on Metzeler Roadtec 01?s?



The tyre pressure I was told to keep them at 30/30

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Roadtec 01's are a touring / bad weather tyre.

I think they were left when the carcase deformed with too little pressure.

Looks to me like an abrasion mark, does it follow all the way round? Doesn’t seem too. Maybe something caught in the hugger? I can’t see it’s a low pressure deformation stress mark at all, esp running with 30psi, despite it being not ideal for a trackday tyre.

They are the same on both sides.

They aren't quite in a line that would suggest rubbing whilst rotating. The lines are angled.

- Alex

alex said:

They are the same on both sides.

They aren't quite in a line that would suggest rubbing whilst rotating. The lines are angled.

- Alex

Click to expand...

well this gets even weirder! If it’s both sides and all the way round, there’s clearly a problem. Still think it’s an abrasion issue, not the construction of the tyre at low pressure. I’d be checking the hugger very carefully. Is it a std hugger and tyre size? Any other non std parts around there?

I was running the same pressure all day... and only appeared in the last session... will post a video of the tyre and also check the hugger that is stock... in a bit.


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I recon that throughout the day under Alex?s guidance your talent increased and stressed the tyre sidewall so much it started to collapse!


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preynol1 said:

I recon that throughout the day under Alex?s guidance your talent increased and stressed the tyre sidewall so much it started to collapse!


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Rofl, if only.

Ha haa

- Alex

https://youtu.be/Z32NfXIbejE



There is nothing visible that is causing the markings from the hugger

alex said:

Rofl, if only.

Ha haa

- Alex

Click to expand...

Thanks for the vote of confidence [emoji22].

Only for you to point at the Apex whilst following you [emoji817]


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This is a puzzler amit. I have never seen that before. The marks on both sides are weirdly similar which suggests its something with the tyre, but the pattern is not consistent which is what you would expect.

I agree with alex that 30psi is probably a bit soft if your pace was down, but the rest of the tyre looks fine so I dont think the pressures or tracktime have caused this.

IMORTAL_Indian said:

Thanks for the vote of confidence [emoji22].

Only for you to point at the Apex whilst following you [emoji817]


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Well you had missed it a few times I thought pointing at it was necessary lol

The laugh was at me being praised, I only ran the lines. RickS1k was the one for how to crank the bike over and corner like a mofo

- Alex

alex said:

Well you had missed it a few times I thought pointing at it was necessary lol

The laugh was at me being praised, I only ran the lines. RickS1k was the one for how to crank the bike over and corner like a mofo

- Alex

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Ha ha .... I was just having a laugh... no offence taken .... really appreciate you showing me the lines . It was useful.


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How was the bike transported to and from track?

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I rode it there the day before and back after the event in the evening.

pof said:

How was the bike transported to and from track?

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IMORTAL_Indian said:

I rode it there the day before and back after the event in the evening.

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Agh ok. Ive had some strange marks from ratchets and wheel chocks

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pof said:

Agh ok. Ive had some strange marks from ratchets and wheel chocks

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That?s the first thing that went through my mind too, was that it was caused by a ramp or some equivalent during transport

Going to say just a bit of tire spin when leaned over, its not a sports tire and you were trying to ride it like one.

How did it handle with them on track?

Tire wear looks like they will last forever.

I emailed the picture to Metzeler and I received an email back this morning. They said to return the tyre to a nominated tyre company and they will replace the tyre free of charge so they can investigate.....

Nice of them...


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IMORTAL_Indian said:

I emailed the picture to Metzeler and I received an email back this morning. They said to return the tyre to a nominated tyre company and they will replace the tyre free of charge so they can investigate.....

Nice of them...


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Click to expand...

Can?t argue with that as service can you.


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