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How long are you going for? I did two days of SDW on relatively worn and weepy tyres with nothing but some plugs and topped up sealant. Despite all the flint I didn't end up using any plugs, but I do still have quite a bit of sealant all over my seatpack (not sure how to get that off tbh)
I didn't even take a tube, but I was aware that I was taking a bit of a risk
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Always bring sealant. If you get a big cut, by the time you’ve sealed it with a worm or three a load of sealant will have been lost, and it’s pretty key to put some back in. That’s why a strong pump like those Lezyne ones are also useful.
On the other hand, four tubes seems like way too much. It’s called tubeless for a reason! One is fine if you’ve set everything up properly. Two if you are very worried. In four years of pretty wild trips I’ve only had to put a tube in twice and both have been after fairly catastrophic crashes.
Have you seen spotter’s tubeless repair kit guide? Might even be linked in the first post. That’s still the go to. Man, I love tubeless worms.
Going on my first bikepacking trip since converting to a tubeless religion, will have 2 tubolitos + 2 regular tubes as backups, the tyres are new and just set up. Should I carry a small bottle of sealant? Will have plugs/boots and all of that jazz