Sidewall Split, OK to ride?

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geocycle
Posts: 2310
Joined: 11 Jan 2007, 9:46am

Re: Sidewall Split, OK to ride?

Post by geocycle »

LollyKat wrote:Back in the day, puncture repair kits used to include a piece of heavy canvas, rubberised on one side, that you could use to reinforce such a split by sticking it on the inside. I've still got some, though it is so covered in dust and chalk powder that I doubt if the glue would grip. You could easily bodge something similar and then use it on the back wheel. Also take some more with you on the Eroica just in case....


Thanks, I wondered what they were for, obvious now you mention it!
sreten
Posts: 347
Joined: 29 Sep 2013, 10:59pm

Re: Sidewall Split, OK to ride?

Post by sreten »

CREPELLO wrote:There seems to be an assumption about the nature of the split in some of the other posts. I'm not familiar with the tyre in question, but it looks like the flaw is at a mould join. Note the blue stripe follows the flaw, which you would get at a join.

Also, the side wall looks to be made of a thickish layer of rubber - I can't see any carcass threads that you'd get with a thin sidewall. So could it be that the rubber at the join has peeled back, rather than any threads being cut? In which case, integrity might not have been compromised.

Perhaps the OP can tell us whether any carcass threads have been cut?

This is only my speculation, but there is usually a tendency whenever someone asks about a damaged component for most answers to be overly conservative in judgement. Not saying that it isn't sensible, but it's not objective. So no real insight gained. Sorry to sound critical.


Hi,

I agree, we don't really know what we we are looking at, and
for the same reasoning as yours it looks like a joint issue to me.

On the back take it off and investigate, inside and out.
Form a sensible, not knee jerk opinion. A real split
in such a high pressure tyre wouldn't last ten minutes.

I agree with your conjecture, (there is no obvious bulging,
otherwise the OP wouldn't be here asking), that the tyre
may not in fact be compromised in any real physical sense.

I'd also look at the other tyre regarding the blue line
wobble and evidence for some sort of common joint.

rgds, sreten.
Steve O'C
Posts: 187
Joined: 3 Mar 2013, 1:32pm

Re: Sidewall Split, OK to ride?

Post by Steve O'C »

Thanks folks for all the sensible advice. I took the tyre off and I am now pretty sure it was a problem at the mould join as suggested. The carcass threads all looked to be intact. However it was a real struggle to get the tyre off (much harder than the Schwalbe Marathons I recently fitted to Mrs Cs bike) and the condition of the rubber sidewall was not great so for peace of mind I think I will replace it.

Steve
User avatar
Redvee
Posts: 2511
Joined: 8 Mar 2010, 8:58pm

Re: Sidewall Split, OK to ride?

Post by Redvee »

I've had a tyre go suddenly and leave me nearly stranded, another, with a tiny 3mm hole, is now booted with an old tyre section, glad I hadn't gotten round to binning that tyre just yet.
sreten
Posts: 347
Joined: 29 Sep 2013, 10:59pm

Re: Sidewall Split, OK to ride?

Post by sreten »

Hi,

On the back, with no evidence of carcass problems it will be fine.
Tyres should be used until worn out, new on the front, old front
on the back, lots of tyres are pointlessly prematurely retired ;).

rgds, sreten.

The condition of the sidewall (cover) is pretty much irrelevent
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