(06 Oct 2021, 5:43 pm)deanmachine wrote I might be mistaken, but because the 6 cylinder one doesn't qualify for low emissions exemptions it doesn't have a 50mph limiter and can do the full 62mph? I can't imagine they regularly put a bus on the X9/X10 that could only do 50. I'm just assuming here, and can't remember my mate on the X9/X10 rota whinging about it being slow, quite the opposite in fact.
I believe that is indeed the case.
But I can't imagine it being good for the engine sitting at 62mph for an extended period of time with that gearing, unless 4th gear on the 6 cylinder is taller than on the 4 cylinder, it did seem to be considerably quieter.
Either way, I still think that given a more suitable gearbox, the 4 cylinder StreetDeck would be more than adequate for the X21, they certainly never felt like they lacked power