(01 Sep 2022, 7:25 pm)mb134 wrote While it was, they've now had a solid 5 years constantly popping up on Alnwick routes and are in much better shape now than the 64-plates were even a couple of years ago. The X21/22, while not as demanding as the Alnwick expresses, are still relatively strenuous routes with a mix of flat out running and constant stop/start.The big question for the X21/X22 is given that GNE unexpectedly ended up with StreetDecks rather than E400MMCs on the X1 including extensions to Peterlee, could the X21/X22 in theory not cope with StreetDecks?
I doubt that would happen anytime soon now. But are the X21/X22 fully demanding enough for an E400MMC?