Tight as in close to the wheel, or steep rake? It is both.
The arm lengths are adjustable, so I played around a bit (with the bike’s frame jacked up on a stand and the spring perch loose on the shock) seeing how short I could get the wheelbase without anything clashing during suspension travel.
Adjustable arm length means adjustable rake; the trail is also separately adjustable vie the connection to the top of the fork. I was shooting for 20 degrees or less, which obviously is very steep, but trail would still be the conventional 3-4 inches. The thinking there comes from the info in this article - https://tonyfoale.com/Articles/RakeEx/RakeEx.htm
I ended up a bit over 21 degrees, which gives me dimensions much like a Buell XB12S Lightning scaled up 15% (bigger wheels, longer wheelbase). Its got a steering damper mounted directly from the fork to suspension arm just in case the setup does want to cause shakes at speed.
