My Google skills have drawn a blank and the new ones are silly expensive
Got a 2.35" here if that's any use to you?
not exactly what you are looking for:
15.63 £
Nobby Nic Performance Addix LS 29x2.25" Wire
Not biking Nobby Nic right now.
But due to some silly pricing of other bike brands as well started biking "non folding tyres/wire" again.
Like above.
What you are looking for maybe:
Nobby Nic Performance Addix TLR 29" x 2.25 Folding ?
https://www.bike-discount.de/en/buy/schwalbe-nobby-nic-performance-addix-tlr-29-folding-647106?varid=647108
21.18 £
I assumed OP was after the (older, pre-Addix) Evolution Line not Performance Line, tbh.
@drovercycles : yes you are right.
My links: these are the new Schwalbes. Maybe also interesting for OP.
Higher quality than my proposals above, EVOLUTION:
29 x 2.25 Nobby Nic Evolution line SNAKE SKIN
https://www.bike-discount.de/en/buy/schwalbe-nobby-nic-evo-29-addix-folding-633436?varid=633438
but they cost 38.75 £ a piece
😐