So last night I got the wheels set up on the bike, gave it 10 minutes going around the car park in our building bedding in the discs a little and checking out the tyres. No problems so I went out this morning.
Made it 300 meters up the road when I hear hissing, 50m more and I pull over completely flat. Turns out I've hit a serious chunk of glass straight off. Good 5mm cut on the outside, long sharp piece has gone straight through. Take it out and aim for the sealent to work, I go to put some pressure into the tyre but the pump doesn't work. Take it off and off comes the valve core, cracked and now attached inside the pump head. WTF.
So I end up walking back down, manage to detach the valve core at home. Find another one. Pump up the tyre but it's not sealing. Grab the flexible superglue as I'm still waiting on tyre worms to arrive. Still fails to seal. Lots of spinng of tyres but no luck. I end up heading out on another bike.
I'll check the tyre again tonight, and maybe put in more sealent. I think quite a bit was lost getting them set up, around the valve stem and also sealing another puncture that was found in the tyre yet hadn't affected the previous inner tube (tyre has about 250km on it).
That previous puncture has me wondering though, assuming it had cut the casing but not the protection strip and that's enough to cause loss of pressure, then what's the point of that strip with tubeless?
Annoyed with the valve core as I've never broken a valve before in my life so I'm tempted to call it faulty but I certainly can't rule out the possibility I fucked that up somehow.