Yep, that's a Hannigan Steer-Lite, it's the newer style trees, if you compare it to mine there are subtle differences but it is a raked tree.
As has been said already, you could just not be used to the difference between bike & trike, or it's possible your front tire is under-inflated, neck bearing too tight, rear shocks set too soft, also possible but not likely is that the rear alignment is not set correct. Could be one or a combination of the above.
That 404 could be part of the problem. Thats what ours had at first, I switched to a Michelin CommanderII and it really helped .