My initial glance at these indicates they have all the desirable options. Thin laminations, aluminum cast stator-core (instead of thin stamped steel plate), 35mm wide stator, phase-wire cable exits motor inside the axle-nut (no hollow axle).
135mm axle-shoulders. Of course it will need torque-arms, but they can be added outside of the frame drop-outs.
The similar Leafbike 1500W motor has garnered quite a following, but they have been resistant to swap the stator support from the common steel pressed plate, into using the cast aluminum stator support. The benefit being that the aluminum spokes add thermal mass to absorb temp spikes. Real world testing has shown that this single feature can dramatically improve the motors ability to run very high temporary amp peaks.
The MXUS, Cromotor, and QS family of DD hubmotors have versions with all the desirable features, but...they have been reluctant to produce a model that has a narrower stator (35mm instead of 45-50mm).
It may not seem like much of a change, but these larger hubs typically will only fit a single-speed freewheel (which is reasonable), but...many builders appreciate the option of having a DD hubmotor that can fit several gears (I recommend the Shimano 6-speed megarange), while being lighter than the 50mm motors, but more powerful than the common 28mm motors.
March 2018 edit: the current US retailer for the Edge hubmotor is West Coast Electric Cycles / WCEC.
Received bare motor July 16. So far, I've found:
135mm axle shoulders
10mm axle flats
Axle-nut uses 21mm wrench
Axle-nut is 14mm X 1.5 thread
16.8 lbs (7.62 kg) Stripped as much as possible, without rim/spokes/axle-nuts (including several feet of phase wires on the scale)
Both axle-bearings are model# 6003Z
Axle diameter inside the bearings (the thick part) 16.4mm OD
Stator tooth-face is 35mm X 13.5mm
Magnet area is 35mm X 13.5mm
When the copper strands of the motor phase wires are twisted into a snug and round cross-section, the diameter is 1.85mm, so they look like 13-Ga
In the pics on the website, the part that is 40mm wide is the aluminum base of the stator support.
There are 6 wires in the hall sensor plug, the normal black/red power...plus green/blue/yellow signal...and a white mystery wire. Could be a temp sensor, I will dig further tomorrow.
There is one set of hall sensors, but the stator has slots for a second pair if you care to install them.
35mm / 99 laminations = 0.35mm per lam
I plan to test the motor shell fins on this hubmotor, so the OD where the fins will sit is a circumference of 685mm, so dividing by 3.14159, I get a diameter of 218mm, so we have a radius of 109mm