The Pirelli‘s and Michelins are dear and seemingly difficult to get hold of too. I have experienced a rapid deflation event and then a puncture 1000 miles later, both on the right hand rear tyre. First cost £210, the second £285. Difficult to get hold of and the second t8ne I had to come back days later. I still think they could have repaired the screw in the tyre, but didn’t want to touch it due to the foam
£380 is definitely taking the piss.