inwoods
Active member
After struggling with getting a tyre to seat when going tubeless google came up with a few of these so I set out to make my own and here is how I did it incase you want to make your own.
Fire extinguisher, I bought this one https://www.screwfix.com/p/firemax-dry-powder-fire-extinguisher-1kg/5534h
Empty it out into a bin then when your sure its not got any air left in it unscrew the top and give it a good clean out.
Unscrew this threaded nut and drill it out to 6mm, I also chopped it down a bit but its not important.
Cut a valve out of a old innertube and take the core out, cut it so it fills the hole in the extinguisher with as little play as possible.
Push the nut you drilled out onto the valve then put the valve nut on and make sure its nice and tight, wrap some PTFE tape around the lot to create a nice seal.
Screw it back into the extinguisher nice and tight.
Put your pump on and pump it up, you will need to hold the handle on the extinguisher down so it can get air in.
Push some 6mm tube (I already had some, ebay, amazon, B&Q, homebase ect all have this) onto the extinguisher and onto your tyre valve and blast.
80 PSI got these impossible tyres on but I have took this up to 120PSI with no problem, it will be rated way higher than I could pump it to, the only slight concern I would have is the valve blasting 'through' the nut but I doubt it.
Fire extinguisher, I bought this one https://www.screwfix.com/p/firemax-dry-powder-fire-extinguisher-1kg/5534h
Empty it out into a bin then when your sure its not got any air left in it unscrew the top and give it a good clean out.
Unscrew this threaded nut and drill it out to 6mm, I also chopped it down a bit but its not important.
Cut a valve out of a old innertube and take the core out, cut it so it fills the hole in the extinguisher with as little play as possible.
Push the nut you drilled out onto the valve then put the valve nut on and make sure its nice and tight, wrap some PTFE tape around the lot to create a nice seal.
Screw it back into the extinguisher nice and tight.
Put your pump on and pump it up, you will need to hold the handle on the extinguisher down so it can get air in.
Push some 6mm tube (I already had some, ebay, amazon, B&Q, homebase ect all have this) onto the extinguisher and onto your tyre valve and blast.
80 PSI got these impossible tyres on but I have took this up to 120PSI with no problem, it will be rated way higher than I could pump it to, the only slight concern I would have is the valve blasting 'through' the nut but I doubt it.
