I rec'd my Ultra Bee a couple of weeks ago, some observations of the bike in stock trim, factory default settings (keep in mind, and in fairness to the bike, I'm 6'5", 210 lbs, so even most full sized bikes feel small to me):
I've been a bit underwhelmed by it during my few very short test rides. It seems to be seriously lacking in the power/snap department, but I haven't had a chance to take it out on my favorite single track, so am reserving judgement until I get to do that.
It feels tiny to me, like TTR125 or KLX140 sized. I had heard it was 7/8th sized, but I didn't realize how small it would feel.
It is, and feels extremely light, which is awesome.
The stock tires are crap, the 19" front wheels/tires, and the low handlebar setup feels very odd, I did not feel confident with the handling in the short sections of single track that I took it on.
Overall quality is pretty good, was packaged very securely, bike arrived safe and sound in its shipping crate.
The MSO document was not included with the bike, and Charged Cycle Works who I ordered it from did not tell me this, so I was a bit concerned when I could not find the document. I emailed them and they replied explained it was coming "soon". It showed up about 2 weeks after the bike, the document looks/feels like a copy of the official document, in other words not very official feeling. It is in English. I hope my local licensing office will accept it when I go to title the bike so I can get an orv sticker (and possibly plate the bike if it grows on me).
The bike has a 17 digit vin number stamped on the headstock, and shown on the MSO document.
The footpegs are large cast items and the hinge/attachment design is not a standard dirt bike size, so finding replacement pegs, or more ideally for me, lowered pegs, will be a challenge. I was hoping the hinge/attachment design would be similar to one of the major OEM's like Honda, Yamaha, KTM, etc.
I installed the aftermarket KKE 21/18" wheel set with a IRC IX-09 Gekkota Gummy 80/100x21 front tire, and a IRC IX-09 Gekkota Gummy 110/100x18 rear tire, and adjusted the throttle sensitivity setting to max sensitivity (quickest throttle response), and the bike felt much more responsive, and handled way better. With the new wheel/tires setup it handled like a normal dirt bike, a very light, small dirt bike. It also had quite a bit more snap, although it still felt lacking in power, especially above 10 mph or so.
I bought it thinking it would hold me over until the Stark Varg arrived, and I could sell my Alta. I was also thinking my daughter/friends could ride it.
But now with the news that the Varg is 260 lbs, I'm not sure I will be purchasing it as I don't really need or want another 260+ lb e-dirt bike, I already have one of those, was really excited about a 240 lb Alta killer, but that's not happening. So not sure what I'm going to do.
Hopefully, with some additional tweaks (larger rear sprocket, non-o-ring chain, power/regen settings tweaks?, tall seat, bar risers, lower pegs) the Ultra Bee will be fun enough to keep around and I'll sell the Alta, decide on the Varg later. Meanwhile I'll be waiting to see if any of the other major OEM's release a 240 lb e-dirt bike (I don't see anything on the horizon).
I'm hoping to get up to my club property soon to do a more comprehensive test ride on familiar trails and see what the bike can do, and I'll report back. But so far, I'm not sure this bike is a keeper.