Re [tyre repair in a tine][chat]

[Guest]

John et al
I've got two of these but haven't used them - these are external
puncture kits but I also have a couple of tubes of a kind of liquid
rubber which expands to fill the entire cavity of a punctured tubeless
tyre.
I was wondering whether these are any good too? I've never had to use
them but I guess they might be handy to have around.
Any thoughts on this?
Renate