Park Tool TB-2 - Emergency Tire Boot,Blue, Set Of 3

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How often something is useful is a question that is often answered with a percentage. For example (making up numbers),

Inflate the tyre to your desired pressure, taking additional caution with high-pressure road tyres, and rotate the wheel so that the plug is at the ground for a few minutes before you get going again. This will allow some sealant to flow into the repair and fully seal things. While there are a number of tubeless repair kits out there, most work in a similar way, using a rubber plug to fill the hole. It follows from this that the boot must be inelastic - or slightly elastic such as a piece cut from another tyre.Next, use your tubeless plug tool to make sure there’s a sufficiently large hole for the plug to enter – carefully insert the spike into the tyre to avoid damaging the rim tape, and twist to give a clean, round hole. The kit, which handily rolls up into itself and secures via a double-sided Velcro strap, is tiny and light enough to easily join your existing flotilla of tyre-fixing accoutrements.

Since it's usually a roadside problem then the overriding feature is that it has to be available, either being carried by the rider or obtainable nearby. If you don’t have a boot but you do happen to have tooth floss and a needle, you can actually sew up a torn tubeless tyre.Then twist carefully to slowly remove the tool, leaving the two ends of the plug on the outside of the tyre. Depending on the patch type, these may need minutes or hours to dry, before setting the tyre up tubeless as normal.

After that, its just a question of cleaning it up and stashing it in your Camelbak for when you need it. I was particularly pleased that I managed to complete my tyre boot without removing any of my fingers, as you can imagine. I know bike testers like to talk in terms of one finger braking but I’m not keen to put the theory into practice.

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But occasionally, something altogether more drastic will happen, and leave a larger gash in the tyre, exposing a section of the inner tube. If that happens, the chances of another puncture happening a bit further down the road are much higher, and you need to plug that hole in the tyre. The added tubeless tyre patch should stop any air leaking out from the inside of the tyre. Immediate Media My guess is that there are many more times people could have used a boot than there are times when people actually have one.