Tyre damage, repair...
 

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Tyre damage, repairable?

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So managed to damage a 3 month old Maxxis Assegai DD Maxxgrip tyre the weekend (£70 tyre!)

Was coming down a rocky/flinty shoot on my 24kg E-MTB (+92kg rider) at around 25+mph and all presure was lost pretty quickly (sealant didnt seem to stand a chance) it looks like something thin/small punctured the outside of the tyre which also slashed the inner side of the tyre and also damaged the tyre further down by the bead, tyre was running 30psi

Repairable and put back into the spares pile or straight in the bin? (replacement has been ordered)

https://flic.kr/p/2nCiRZU

https://flic.kr/p/2nCdT43

https://flic.kr/p/2nCmk9U

https://flic.kr/p/2nCdT4y


 
Posted : 04/08/2022 5:52 pm
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At £70 I would definitely try repair!

(Mushroom patches and anchovy for near bead)


 
Posted : 04/08/2022 5:58 pm
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Few mushroom plugs and back on the bike, will need to trim the one on the sidewall with a sharp blade to make sure it’s flush.


 
Posted : 04/08/2022 6:00 pm
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Wouldn’t even consider replacing that.

Anchovies for the small nick near the bead, bodgers solution for the bigger hole would be to stitch it shut with dental floss and bung a normal tube patch over it. Mushroom plugs would be the pro answer, as above.

That has all the hallmarks of a classic pinch flat - you might be better off spending the cash on an insert like a Rimpact or Cushcore given the masses involved. I’m about 2/3rds of your system weight and the Rimpact I run on the back of my big bike is definitely doing good work, looking at the cuts in it.


 
Posted : 04/08/2022 6:12 pm
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I'd just repair that (as above), plenty of life left in it.


 
Posted : 04/08/2022 6:19 pm
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Cheers for the replies

Will be repaired using a mushroom etc.. and put into the spare pile

That has all the hallmarks of a classic pinch flat – you might be better off spending the cash on an insert like a Rimpact or Cushcore given the masses involved

3+ years of riding e-mtb's and this is the first failure like this, this happened around 15 miles from the car so a tube was chucked in with a £20 note acting as a patch on the inside of the tyre and the ride was finished!

Dont think i fancy having to wrestle a tyre insert out of a tyre on the trailside and then have to carry it dripping in sealant for the rest of my ride!


 
Posted : 04/08/2022 7:03 pm
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+1 on (Mushroom patches and anchovy for near bead)

I've tried cutting mushrooms for cuts on the bead and its been hit and miss.

I'd fix it and put it straight back on.

I keep an old toothpaste tube for tyre boots. They have lasted me 20 miles on one particularly annoying occasion


 
Posted : 05/08/2022 8:43 am
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As above mushroom plugs. Never had one fail even on the bead.
I would have the tyre back on without any worries.
Never seen a tyre that clean on the inside. Mine usually have a coating of Stans.

[img] [/img]


 
Posted : 05/08/2022 9:34 am
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Any reason for mushroom over heavyweight flat patch much wider than area?

I'm not talking about a feather edge patch here but a 1.5-2mm thick rubber flat patch.

Just wondering if my holiday repair deserves redoing with a mushroom now I'm home (not as big as the OP's tear (c. 5mm)).


 
Posted : 05/08/2022 12:01 pm
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Never seen a tyre that clean on the inside. Mine usually have a coating of Stans

Tyre was 3 months old with Muc off sealant from new, i have a hot water garden tap which is great for removing sealant using a high pressure spray gun


 
Posted : 05/08/2022 2:27 pm
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As well as patching the inside a mushroom plug goes through the hole and plugs it.


 
Posted : 05/08/2022 2:42 pm
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Had a similar double puncture the other week. Anchovy plugged the gash in the centre of the tyre but not the sidewall one, which was a bit bigger than yours and nearer the bead. Had to put a tube in and have since repaired with a patch which has held up well - got the tyre set up tubeless again.


 
Posted : 05/08/2022 4:40 pm

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