Sidewall problem, use or change?

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Dirk Van Der Dirk

Well-Known Member
IMG-20260728-WA0008.jpeg


Just found this on my michelin power cup rear tyre. Looks like a potential hazard to me, anyone reckon there are miles left in them?
 
Wouldn't bother me, but then, I've always been a devil may care type, always throwing caution to the wind :laugh:
 
If you haven't got a new one ready to fit, now is the time to get one - that one on the wheel now will fail at the most inconvenient moment.

It might last hundreds of miles longer, or it might fail catastrophically close to the start of your next ride.
 

wafter

I like steel bikes and I cannot lie..
Location
Oxford
Do you know how it happened? Looks like the top layer of rubber has been abraded exposing the (undamaged?) ply beneath.

In which case I'd not be unduly concerned, but would keep an eye on it and also carry a spare; which shouldn't be a big issue if you're using folding tyres.
 

Ajax Bay

Guru
Location
East Devon
I would put a good sized (20mm x 10mm) patch on the inside and crack on. The tyre is not going structurally to fail on that, but you want to make sure the tube stays in if there is any ply/thread deterioration. See Ming's response. Everyone's risk threshold is different. Slightly depends how new/how much life the tyre otherwise has left.
Like @ivegotabike I too would make sure I had a 'new' tyre ready to fit.
 
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