That worked for my commuter Pathfinders and one of the Minions but the Assegai defeated me. Spent two hours and every technique I could find wrestling with that tire! I swore that was the last time I'd put myself through that.
I feel your pain on the Assegai. I got mine to work eventually as tubeless as there was no way I could possibly get a tube in under it.
I've used Muc Off tubeless valves on my last couple of tubeless setups. But I have also had 100% success with Orange Seal valves. Both are one hell of a lot cheaper than the Chris Kings linked above. I think the secret ingredient to success with a tubeless valve is if they have a metal lip on the bottom that lets the gasket smoosh down and seal tight without ever having the possibility of pulling thru. If the valves don't have that then they will never hold long-term.
I believe
@m@Robertson has one on one of his buildd.
I think I have three of them, actually. Stuck an XT60 on the end and it plugs right into my main bike battery. But since then I have switched wherever possible to one of two self-contained pumps whose internal battery is about 3x the size of most competitors.
This is the pricier one. Wait around long enough and you can get a coupon that gets it down to around $35.
This is the cheaper one. Same company selling it. It doesn't have a metal case, and its a little bigger. Has a 12% off coupon now too.
Both come with a screw-in presta adapter that I just leave on forever. These work so well I have abandoned my use of compressors unless I am trying to seat a tubeless tire, and even then the damn things usually already fit so tight I can just use a slow pump and not worry about it. I pump the tire fully with the little battery-powered compressor so the bead seats, then let the air out, remove the valve core, inject Flatout thru the open valve and reinflate. Job done.
Its not like I don't have alternatives vs. these little things, which after a year I finally feel comfortable relying on. I also have a 3 gallon compressor from Lowes that will blast anything and has a presta inflator on it, an M12 compressor just like the one shown above (although I use that for my car), and a supercalifragilistic Topeak Booster pump that has a tubeless charging canister on it. Godawfully expensive if purchased today.
I pretty much use only the portable battery pumps or the Topeak pump when I don't feel like digging a pump out of my tool bag.
the valves are the only good deal from christ king. I cant believe how much they raised the price on the item I made them.
