What tubes are you guys carrying as spares for your chubbies, just as get you home fix for tubeless.

Cheap lifeline ones from Wiggle

Do you just use the 650b ones? I can only find them and 29″

Specialized 2.4-3.0″ tubes work well.

Schwalbe does a 650b tube that’s good up to 3.0 – £8 from nextdaytyres. It mostly lives in a saddle pack on the bike just in case and so I don’t leave it at home after changing bikes. I’ve also used a 29″ tube in an emergency, but it’s not ideal, takes ages to fill the void.

I’ve got 26″ ones in mine!

I’ve got a random big carcass 29″ tube in my bag, but as said, it’s for emergencies. I’m tubeless, so hopefully I won’t have a problem.

Specialized 2.4-3.0″ in my case but any standard 650B tube will be fine.

I use the 26″ version of the 2.4-3.0″ tubes in my 4″ fatbike tyres.

I took a demo bike out at the weekend and punctured. My 650b spare tube went in and was fine for the rest of the ride.

I just carry a bog standard 29er tube. Reason being is that if I did have to fit it, it would sit on the outside of the tyre therefore less chance of nipping it with the beads.