Rubber bumps

[Domdom1980]

Hi all

Was just cleaning the bike this afternoon on the stand and thought I'd check tyres for condition, and I've spotted a couple of 'bumps' in the rubber in the rear tyre around 100mm apart. Rest of tyre is fine.

Slightly soft under touch, but general structure of tyre is sound.

Is this something to worry about and worth considering a new tyre?

They are Hutchinson fusion 5s run tubeless and have covered about 1000km

 

[fossyant]

It's delaminating. Time for a new tyre if you've had it a while

 

[roley poley]

loosening tread on a tyre is never a good thing to have well spotted

 

[Domdom1980]

Thanks for the replies!

I was hoping for a bit more usage than 1000km, but then I suppose it depends on what they have run over.

Front is still mint though, so not the end of the world!

 

[Cycleops]

Look pretty well worn to me, 1000k ain't much, maybe it's down to the compound.

 

[fossyant]

How old are the tyres. You could try a warranty return.

 

[Spiderweb]

1000km is nothing, the tyre doesn’t look worn at all, as above this is delamination. I’d send some similar images to the retailer/manufacturer.

 

[Domdom1980]

I only got them in January.

Might give another one a go as the front is still in good nick. I'd like to say it is down to the extreme power I'm putting down but no chance of that.

Perhaps I got a wrong'un.

Does seem like a good idea to change straight away and not go out and risk it going on me down a hill at 25mph...

Thanks for all the help.

 

[roley poley]

I would be nosey enough to take it off to have a look on the inside under the blisters

 

[Domdom1980]

I'll also send Hutchinson and Condor (where I got them from) the pics, see they do anything about it.

 

[Specialeyes]

They look slightly squared off compared to the stock image on Hutchinson's website - have you used them on a wheel-on turbo or rollers?

 

[Domdom1980]

They look slightly squared off compared to the stock image on Hutchinson's website - have you used them on a wheel-on turbo or rollers?

No, not at all, road only, might be angle of the shot that gives that impression.

I've run them around 85psi which seems around right for my weight.

The only thing I did notice was a small nick nearby and as they are tubeless I wasn't sure if that might have affected it? Maybe this caused the rubber to delaminate before resealing and me reinflating?

 

[Ajax Bay]

Might give another one a go

If a tyre fails you - like this has - do not give the model 'another' chance. I've used the tube version of these (well one of) and was not impressed so off it came and replaced.
Surely you can expect at least 4000km (rear).
There are plenty of good tyres out there:
Compare/continental-grand-prix-5000-tl-2018-vs-hutchinson-fusion-5-performance-2017-vs-schwalbe-one-tubeless-2014

 

[Smokin Joe]

Surely you can expect at least 4000km (rear).

Depends on the tyre. I've had the tread start to disappear on a Vredesten Fortezza Tricomp used on the back at around 600 miles.

 

[Ajax Bay]

Did you give the Vredestein "another go"?