My other half has a 2018 Camber FSR and it came with Alex rims: Specialized just quotes Alex AS51 27mm internal width on the spec sheet.
I rang the shop to ask them if they were tubeless ready out of the box. They said some are delivered with the relevant tape in place, some are not. I checked the inner of the rim and there is a material that does not feel like metal, but almost like a plastic/fiber lining, that is a dark black colour. I could just make out it has '2 Bliss' on it and a very hard to read diagram indicating 31mm width. It is also not possible to see the any spoke heads poking through. It is hard to tell but if feels like a very tight fitting tape/liner to me.
I am assuming that due to my detective work above that it has the relevant set up in place to run it tubeless? Feel free to mock my lack of common sense.
2-Bliss sounds encouraging. Do you have a tubeless ready tyre to hand? You can set it up tubeless without sealant in the first instance just to see if the tyre snaps on and holds air, ie you don't need to make a big mess with sealant if it proves not to be a goer. If it looks solid then put the sealant in afterward.
2bliss is ‘tubeless’ (get it?) in Specialized world. You should have received a pair of valves with the bike, pop them in, add Sealant and you’re good to go.
Thanks both - had a go at popping tyre back in with no tube; bead snaps in fine. Tyre inflates. Leak from the split in the rim (directly opposite where the valve is), above about 35 psi on both rims. Rang the shop and they said bung in some sealant.
Air escaping through the rim joint usually means the tape is not airtight - see what happens with sealant, it might do the trick but if it doesn't you'll need to retape.
Thanks G-L; I have re-inflated with some Stans in the wheels and it seems to be holding, touch wood. Will keep an eye on it.