Repairing a tyre tread - Schwalbe Marathon

[saudidave]

I ran over the neck of a broken bottle yesterday which in itself shattered and a shard of glass embedded itself in the tyre tread. I gingerly pulled it out and to my amazement the tyre stayed fully inflated and remains so. It has left an attached flap of tread which can be lifted to reveal the protective belt in the tyre which has done its job.

The question is, can the flap of rubber be glued back down safely and if so with which adhesive?

[richardfm]

I would try this stuff
https://www.repairingproducts.co.uk/pro ... goo-black/

[Jdsk]

I might try and glue it to get me home or similar.

Then I'd throw the tyre away.

Jonathan

[Cugel]

I ran over the neck of a broken bottle yesterday which in itself shattered and a shard of glass embedded itself in the tyre tread. I gingerly pulled it out and to my amazement the tyre stayed fully inflated and remains so. It has left an attached flap of tread which can be lifted to reveal the protective belt in the tyre which has done its job.

The question is, can the flap of rubber be glued back down safely and if so with which adhesive?C.jpg

This stuff is not good environmentally but then neither are tyres.

https://www.amazon.co.uk/gp/product/B09 ... UTF8&psc=1

I've used it to fill a missing patch of tread where a tyre got badly nicked - about 4 square millimetres - and it seems to have stuck well over many rides now. Clean the tyre carefully with isopropyl alcohol first, letting it evaporate off, then drip in the good. If it's to hole-fill as well as act as a glue, drip it in to leave a proud bead, which will shrink as it dries; and any remaining excess will rub off as you ride.

Cugel

[Cugel]

I might try and glue it to get me home or similar.

Then I'd throw the tyre away.

Jonathan

No need to be so drastic! The tyre's integrity is largely provided by the inner carcase rather than the rubber cladding that makes the tread. If the inner carcase is undamaged and the tread-damage fixable, the tyre can be saved and will be safe to use. A check by eye for carcase damage first followed by a spin of the wheel with the tyre fully inflated, to look for a wobble that indicates inner damage. If it seems the tyre's integrity is otherwise good, fix the tread with an appropriate goo.

Cugel

[saudidave]

Thanks everyone for the replies. I Rode about 12 miles after the incident yesterday. The tyre is totally stable, pressure intact 24 hours later and if I hadn't made a note of the position of the damage I'd have never found it again afterwards. A triangular flap of the tread about 6mm long and 4mm wide at the base of the triangle, remains attached by the 4mm base.The casing has lost no integrity. The flap can be lifted up and glued back down, the only question being what type of adhesive and will it stay glued down?

Any stress on the flap will be in compression, not tension, so the flap is unlikely to lift or the glue fail unless it's affected by water. Have you ever tried to remove a puncture repair patch from an old inner tube? The patch or the tube is more likely to fail than the glue!

[squeaker]

I would try this stuff
https://www.repairingproducts.co.uk/pro ... goo-black/

+1. Works on shoes, too!

[Paulkentuk]

An alternative to just glue, would to be remove the tyre and use a plug. That fix will probably last the life of the tire.

https://www.tredz.co.uk/.Muc-Off-Punctu ... xwQAvD_BwE

[PH]

I'd stick it down with superglue, make a note of where it was (maybe mark the sidewall), use it as a rear tyre, check it periodically for the first hundred miles, or till I forgot about it.
I don't think it's structural, I've run several tyres with with that sort of layer below the tread down to that layer, most frequently when commuting on Vittoria Randonneurs, never any sign that the tyre was compromised in any way other than not having any tread!

[chris_suffolk]

I've been repairing nicks in my tyres with StormSure for a while now. One repair lasts about 500 miles on average. Keep the opened tube in the freezer.

[Bonefishblues]

I'd stick it down with superglue, make a note of where it was (maybe mark the sidewall), use it as a rear tyre, check it periodically for the first hundred miles, or till I forgot about it.
I don't think it's structural, I've run several tyres with with that sort of layer below the tread down to that layer, most frequently when commuting on Vittoria Randonneurs, never any sign that the tyre was compromised in any way other than not having any tread!

Superglue dries hard and therefore brittle. What is needed, assuming the OP wants to glue, is something like the flexible shoe/outdoor gear ones others have recommended.

[PH]

I'd stick it down with superglue,

Superglue dries hard and therefore brittle.

Works absolutely fine for me and judging from the number of google hits, works fine for many others as well. The OP is only trying to stick a little divot down, there's no need to overcomplicate it.

[Bonefishblues]

I'd stick it down with superglue,

Superglue dries hard and therefore brittle.

Works absolutely fine for me and judging from the number of google hits, works fine for many others as well. The OP is only trying to stick a little divot down, there's no need to overcomplicate it.

Just suggesting something that would work better, not overcomplicating.

[PH]

Just suggesting something that would work better, not overcomplicating.

Better than what? if it works, and it does, what do you need better for? Something that the OP is likely to have in a drawer or if not can get from anywhere, rather than some unnecessary specialist product, is the least complicated option.

[Bonefishblues]

Just suggesting something that would work better, not overcomplicating.

Better than what? if it works, and it does, what do you need better for? Something that the OP is likely to have in a drawer or if not can get from anywhere, rather than some unnecessary specialist product, is the least complicated option.

I'm adding an opinion. I typically think better* is better because it's better, but I respect your opinion that good enough is enough

*Even if it's what you term an unnecessary specialist product like the one I have in a freezer drawer at the moment. Very useful stuff for a variety of uses, such as where you need to retain flexibility after a repair