Thorn puncture - any reason not to keep using the tyre?

For discussions about bikes and equipment.
LittleGreyCat
Posts: 1185
Joined: 7 Aug 2013, 8:31pm

Thorn puncture - any reason not to keep using the tyre?

Post by LittleGreyCat »

An eventful ride yesterday - puncture and chain problem (see other post).

It is hedge cutting season and two on our ride managed to get punctures on an excursion along a bridle path.

Mine, in a Marathon, was more or less dead centre in the tread and straight through.
Pulled out and the inside examined and no obvious problems or bit s sticking through.
Tube replaced and away.
All very interesting as I can't remember the last time that I had a puncture.

I'm just checking if there is any reason not to just continue using the tyre as is.
Jdsk
Posts: 24934
Joined: 5 Mar 2019, 5:42pm

Re: Thorn puncture - any reason not to keep using the tyre?

Post by Jdsk »

Can you add a photo if you're concerned?

Sounds fine to me.

Jonathan

PS: As well as looking I always feel with a forceful brushing action.
roubaixtuesday
Posts: 5818
Joined: 18 Aug 2015, 7:05pm

Re: Thorn puncture - any reason not to keep using the tyre?

Post by roubaixtuesday »

I once removed nine (yes, really) thorns from a tyre after an autumn ride around the Shropshire lanes. They often self- seal for a while at least.

They don't cause any problem once removed.
User avatar
mjr
Posts: 20337
Joined: 20 Jun 2011, 7:06pm
Location: Norfolk or Somerset, mostly
Contact:

Re: Thorn puncture - any reason not to keep using the tyre?

Post by mjr »

As long as the canvas inside isn't badly cut, I'd continue using it. If really paranoid and you can leave the tyre for a couple of days for it to cure, fill the hole with Stormsure.
MJR, mostly pedalling 3-speed roadsters. KL+West Norfolk BUG incl social easy rides http://www.klwnbug.co.uk
All the above is CC-By-SA and no other implied copyright license to Cycle magazine.
sjs
Posts: 1318
Joined: 24 Jan 2010, 10:08pm
Location: Hitchin

Re: Thorn puncture - any reason not to keep using the tyre?

Post by sjs »

Jdsk wrote:Can you add a photo if you're concerned?

Sounds fine to me.

Jonathan

PS: As well as looking I always feel with a forceful brushing action.


I'm sure it will be fine. I've never known a thorn cause enough damage to worry about, though I'm sure someone will be along in a minute with a tale of disaster.

I did cut my finger once while detecting a thorn with that forceful brushing action though.
Jdsk
Posts: 24934
Joined: 5 Mar 2019, 5:42pm

Re: Thorn puncture - any reason not to keep using the tyre?

Post by Jdsk »

But fortunately thumbs are self-healing!

: - )

Jonathan
cycle tramp
Posts: 3572
Joined: 5 Aug 2009, 7:22pm

Re: Thorn puncture - any reason not to keep using the tyre?

Post by cycle tramp »

Can I ask what tyre size it is? If it's a 26" by 1.75" then it's a death trap and should be sent to me immediately for safe disposal. I'll waive any costs incurred of safely destroying it for you ;-)
mumbojumbo
Posts: 1525
Joined: 1 Aug 2018, 8:18pm

Re: Thorn puncture - any reason not to keep using the tyre?

Post by mumbojumbo »

I concur as those thorns can even perforate the rims if unchecked.
pwa
Posts: 17419
Joined: 2 Oct 2011, 8:55pm

Re: Thorn puncture - any reason not to keep using the tyre?

Post by pwa »

Make sure the thorn is out. It is worth spending some time looking for it. But the tyre will be fine once you have done that.
MikeDee
Posts: 745
Joined: 11 Dec 2014, 8:36pm

Re: Thorn puncture - any reason not to keep using the tyre?

Post by MikeDee »

Yikes! I didn't think a Marathon could be punctured by a thorn. I'm sure the tire is perfectly usable once you remove the thorn and put a new tube in.


I'm a trendy consumer. Just look at my wobbly bog brush using hovercraft full of eels Pro
axisofevil
Posts: 11
Joined: 27 Jul 2020, 11:29pm

Re: Thorn puncture - any reason not to keep using the tyre?

Post by axisofevil »

MikeDee wrote:Yikes! I didn't think a Marathon could be punctured by a thorn. I'm sure the tire is perfectly usable once you remove the thorn and put a new tube in.


You can patch tubes, you know. :shock:
MikeDee
Posts: 745
Joined: 11 Dec 2014, 8:36pm

Re: Thorn puncture - any reason not to keep using the tyre?

Post by MikeDee »

axisofevil wrote:
MikeDee wrote:Yikes! I didn't think a Marathon could be punctured by a thorn. I'm sure the tire is perfectly usable once you remove the thorn and put a new tube in.


You can patch tubes, you know. :shock:

Of course


I'm a trendy consumer. Just look at my wobbly bog brush using hovercraft full of eels Pro
lescargo
Posts: 273
Joined: 27 Dec 2013, 11:51pm
Location: Tyneside

Re: Thorn puncture - any reason not to keep using the tyre?

Post by lescargo »

Yes, use after thorn puncture
BUT after puncture from shard of glass which probably will have damaged the threads in carcase
I usually, at home, stick a thin Cure-C-Cure type patch for local re-inforcement and biro mark the sidewall
to identify as an old scar for future when checking tyre for cuts/damage etc.

Finding the thorn or glass shard ??
Second savers!!
Always, if there is a badge on the tyre, put this central alongside the valve then when you have
found the puncture in the tube you have a good reference to locate the cause in the tyre.

Also if you do use dust caps-I don't, use white or yellow for quick valve location when dark.

How many spare tubes do you carry?
Me--three and self adhesive patch's.
Just in case you don't find the puncture culprit when changing tube.

And now, back up North, we are all back on segregated riding.

Perhaps its time to explore those little "No through Roads" we have passed and never had time to look at.
axel_knutt
Posts: 2928
Joined: 11 Jan 2007, 12:20pm

Re: Thorn puncture - any reason not to keep using the tyre?

Post by axel_knutt »

I had a 3mm diameter hedge trimming stalk through a tyre once. It was fine for another 400m before the bracing ruptured, but not so badly it couldn't wait until the next bike shop.
“I'm not upset that you lied to me, I'm upset that from now on I can't believe you.”
― Friedrich Nietzsche
francovendee
Posts: 3152
Joined: 5 May 2009, 6:32am

Re: Thorn puncture - any reason not to keep using the tyre?

Post by francovendee »

:lol: :lol: :lol:
cycle tramp wrote:Can I ask what tyre size it is? If it's a 26" by 1.75" then it's a death trap and should be sent to me immediately for safe disposal. I'll waive any costs incurred of safely destroying it for you ;-)
Post Reply