I rode the bird Aether a few weeks back, was toying with the 141 as an alternative but haven’t swung a leg over it.
(caveat, I’m a lanky sod)
So the bird in xl is longer than the p4, but it’s longer than a long thing. It was the first bike I think I’ve ever ridden and thought wow, this fits, this must be what short people feel like all the time. So it’s the first time weighting both wheels at the same time has ever really been a thing and as a result my views might be a bit biased…
It pedaled brilliantly, tracked over everything, winched up and over with a tiny kick of the pedals, it wasn’t a sprightly feeling climber but strava says it was quicker in a 15-20 minute climb than my faster feeling following.
Down hill the front wheel tracked remarkably, held traction even when lent over and stamping the pedals. The rear just followed by the length put it in funny places. I’d get used to that over the course of a few rides.
It was pleasantly poppy of lips but definitely suited my wheels on the ground approach well.
The fork felt very stiff (140 like ultimate) but that’s a setup thing.
The rear I’m undecided on, had an rs deluxe on it and it felt like it was either blowing through or way too firm but the oring told a different story. I think it would be awesome with a coil on but not sure if the rs just wasn’t setup right for me or just not the right shock, that said it’s a five minute setup for couple of hours demo so a lot of that could be dialed in.
The thing that’s sort of pushed me away from the privateer is lots of the comments I could find said it’s not great up hill and frankly, if u want a bike which isn’t good up hill I’ll get something with the travel to make the trade worthwhile. In a mid travel bike I want good up and good down not “rides like an enduro bike up” and “not an enduro bike down” .