Follow up report, 2022 Lexon Spirit EMTB build. Coming onto 1,600km of 70/30 off road use without issue, and that is after adding an air fill port for the rear shock, and a 5mm hole in same vicinity as part of an anti rotation device for the drive motor. Two additional holes were added to the down tube for epoxied-in rivnuts to better secure 48v 17.5Ah battery. I decided to stay with the 140mm of front travel on the X-Fusion 34 fork, acknowledging that the geometry calls for 120mm front with 100 rear. Absolutely love the 67.2 head angle which reflects the trend toward slacker head angles on XC full sus frames. I ordered and received a spare MY 2023 3-piece bell crank assy for the rear sus just to have it, Lexon sent it for a 30 buck S&H fee.
The good: headtube cable routing, sweet geometry, cush air-flex ride helped by CF wheelset and CF bars, gorgeous paint job which I protected with 3M Rhino Skin, and last but not least, low cost-- as I basically threw existing parts onto an $1,075 frame (with decent shock, headset, and axles included). The less than good: rear triangle is a little flexy but tolerable, had to lathe-up improved spacers for for rear sus external linkage arms and replace damaged bearings, no metallic insert for NDS rear axle hole.