[BGPHOTOFISH]

I’ve been running Mavic Ksyrium Pro UST wheels with a Mavic Yksium Pro front tire and a Mavic Yksium Pro UST on the rear.  During the summer I noticed what looked like a blister (about the size of a 5p) on the front tire just off the centre line.  Tire was pumped up but you could still press the blister down.  I thought it might just be due to the sun in the room where I store the bike.  Checked the bike today and noticed I have three new blisters on the rear tire since my ride on Sunday.  

Are these tire defects and need replacing or just insufficient sealant?  

I use Hutchinson sealant (like the applicator) and top up quarterly.  I’m 80 Kg and run the tires at 80psi on the road and 100psi on rollers.  I’ve tried Hutchinson Fusion 5 tires and they’re easy to get on the rims, but don’t hold the air for long and Conti’s (but couldn’t get them on!).  The original front Yksion has done 4000 miles and the rear UST half that.  Any help appreciated.  

Topic

[Hirsute]

That’s what the lbs did to

That’s what the lbs did to mine !

[Secret_squirrel]

What happens if you prick

What happens if you prick them with a pin?

[hawkinspeter]

wtjs wrote:

HP is a worthy source of advice about things to avoid- I have taken note of the radical Ultegra Pasta Cranks, and now it’s the delaminating tubeless super-techno graphene tubeless tyres with aero-blisters which confirm my decision to stick with boring old tubes and Schwalbe Marathon Plus. I’m sure they’re slower but it doesn’t make much difference while towing a trailer round the Lakes, and I haven’t had a puncture for over a year

I’ve had zero problems with Conti GP 5000TLs (running tubeless). Schwalbe Marathon Plus are a good way of avoiding the p-word, but they’re heavy and aren’t very flexible.

[nopants]

I had the same problem (same

I had the same problem (same wheels and tyres too). It happened very soon after I got them, after just a few rides. First the back then the front went. 

Mavic told me to stop using them and return to the nearest dealer for replacement.  I wasn’t able to get to a dealer and Mavic replaced both tyres (sent from France!) This was in 2019 before the new ownership, and the tyres were barely used. With 4000 miles on the clock I’d ditch them.
It may be a non issue, but now you have noticed why risk it? Seems likely it will only get worse…

[BGPHOTOFISH]

Yes, but not quite as big and

Yes, but not quite as big and they’re not as close together.  I think I’ll stick with them for another couple of weeks and then put some older (tubed) wheels on for the winter.

[hawkinspeter]

Is it anything like the

Is it anything like the blisters I got on my Goodyear tyre? https://road.cc/content/tech-news/270603-first-look-goodyear-eagle-f1-road-tyres-launched-graphene-technology

IIRC it’s the tyre layers delaminating which shouldn’t be a major problem, but I changed my tyre after getting them as they’re not confidence inspiring and they made a funny noise rolling until the blisters got flattened.

[Hirsute]

I have had blisters before.

I have had blisters before. The lbs said not to worry but I can’t recall the reason.

 

[Author]

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