I'm a fan of the Speeder 400. I've seen the 2021 iteration recently (which may be exactly the same as the previous year, not sure) and I want it/will get it. I've had a Crosstrail for the longest time, and the Speeder is just as solid and sturdy, yet incredibly lightweight. The Speeder 500 is only minimally more expensive, but comparing the specs I just think the 400 is slightly better than the 500. Just my opinion, as a value shopper. Can't comment on the 900.