I think you summed it up pretty well. The biggest other difference I see is that this bike was designed to be a Cruzbike from the beginning, where as the Sofrider used a standard y frame.
(I am basing this on looking at the pictures, I don't really know anything.)
The only question I have is they quote a seat angle that doesn't tilt as horizontal as I'd expect from the pictures. What's going on there?
The goal, it seems, is bare-bones functional simplicity, low cost of mass production and a foolproof seat angle for the newbies. The seat tilts no lower than 50 degrees. That's pretty upright, (hence) no headrest is needed and I think you probably can glance slightly over your shoulder. It also looks light weight (basic build is about 14Kgs or 30 pounds ), probably even less?
We "veterans" want more aggressive seat angles because we already have the balance, MBB riding skills and most importantly, we know how to manage the short comings, like traction, rear view, (hill)start/stop, riding over speed bumps and rumble strips e.t.c.
However for the T50, the masses to whom it is targeted, will probably attempt/want to look over their shoulder to see what is behind. They will expect minimal traction problems. They will want to just push the pedal and go! Consequently, the seat angle looks more upright and quite further forward than most other cruzbikes. Naturally, the BB will also be lower. Those are recipes for easy starts and great traction assuming the rides will be on good paved surface. It's a trade-off against aerodynamics and possible recumbutt issues may arise for the heavier riders. But such issues are only a concern for racing and ultra long cycling events, which at that point, the riders will no longer be newbies and will most likely modify it or use a more appropriate model.
![IMG_20160801_121026101 (800x450)[1].jpg](https://forum.cruzbike.com/data/attachments/4/4703-c096b4dc0559208a3c2f8809c82703f7.jpg "IMG_20160801_121026101 (800x450)[1].jpg")
