• Tyre boot, but that's not really a permanent solution in most cases. Depends on how bad the cut is and what type of tyre boot material was used. I've had Park stick on tyre boots fail after another 300k day and ended up changing to a spare tyre instead.

    You can also try glue from the outside. I used to use superglue to fill nicks and stuff in tyres to stop another sharp thing getting in the hole but I'm too lazy for that shit now and I tend to just use more durable tyres in the first place.

  • I've used rolled up crisp packets and they lasted for ages, that's me risking it for the fun of pushing the limits but if I'll have to have a permanent fix, I'll cut a sidewall off a used tyre (GP5000 is my favourite) and tape it on with some rim tape.

  • I wonder if just the rim tape would work on its own? It's pretty tough. Never thought of that until now (probably because I don't carry a fucking role of rim tape on my rides - should've done - would've saved me a day on my TransAm)

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