Thread showing on side wall

[Digwellboggs]

Hi All
I've ridden a set of Pirelli Cinturato 70028c for about 1000km. They are now showing signs of fine white thread on the side walls. Is this normal for a relatively new set of tyres.
https://photos.google.com/share/AF1QipM ... WhVZkhGNXB

[trailgumby]

Hi All
I've ridden a set of Pirelli Cinturato 70028c for about 1000km. They are now showing signs of fine white thread on the side walls. Is this normal for a relatively new set of tyres.
[img]IMG_0822.JPG/img]

Your image link didn't work, unfortunately. You need to upload to a public hosting site first and post the full link including the http:// bit.

My rule of thumb is that the occasional thread isn't a big issue, so long as there is no cut and the sidewall isn't bulging.

It is not unusual on Conti Gatorskins and GP4000s, and seems most commonly to be the edge of the sidewall plies after they've been wrapped around the kevlar bead.

[Digwellboggs]

https://photos.google.com/share/AF1QipM ... hVZkhGNXB3

[find_bruce]

https://photos.google.com/share/AF1QipM ... hVZkhGNXB3

[uart]

https://photos.google.com/share/AF1QipM ... hVZkhGNXB3

Oh, that's super common on a lot of tyres. Those are just some threads from the piece of edging fabric that covers the bead section of the tyre.

You can just cut off those loose threads with a pair of scissors, it won't hurt anything. Sometimes I also wipe a small amount of Tarzan's Grip glue on those edges to stop them fraying further.

[RonK]

https://photos.google.com/share/AF1QipM ... hVZkhGNXB3

Looks like under-inflation damage to me.

[Duck!]

https://photos.google.com/share/AF1QipM ... hVZkhGNXB3

Looks like under-inflation damage to me.

No it doesn't. As uart said above, it's the bead reinforcing layer shedding the odd string. It happens on a huge number of tyres, regardless of pressure. Snip the dags off and keep riding.

[Thoglette]

Looks like under-inflation damage to me.

No it doesn't. As uart said above, it's the bead reinforcing layer shedding the odd string. It happens on a huge number of tyres, regardless of pressure. Snip the dags off and keep riding.

This is under inflation damage, probably "helped along" by some kerb hopping

If you buy vulcanised tyres it might look like this


For completion, this is what over inflation damage looks like
(Last three from Tadpole rider)