II am 66 years old. have had my UD3 for about 4 months now. In that short timeframe I have logged over 2500 miles on it. Riding It is so much fun that hasn't been hard to do. It is in charge and it gets noticed. I ride it on roads, trails and in the woods. This bike cannot be stopped, I and have yet to see another bike that can outperform it at any price. It will climb just about anything, as long as you can stay in the saddle! It is a big powerful bike that might take a little getting used to at first due to the sheer size and weight of it. But it is precisely the size, weight and power of this bike that make it such so exceptional and comfortable. You will ride with complete confidence in your newfound "partner" and it will not let you down. Get the extra battery (you will not want to get off this bike) and the Magura brake upgrade and it is even better! It has opened up a whole new world, conquering terrain a lesser bike could not dream of tackling It is worth every cent I paid for it. It is superb. As for the people who work for Biktrix, they are second to none.

They say to save the box just in case. Well guess what, they never getting this thing back. It's mine now! I did a good amount of research beforehand and although I was a little skeptical because of the price and a couple of bad facebook reviews, I could not be happier with my decision to go with Biktrix. Customer service sent out a replacement front brake rotor that was damaged during shipping and I had it in my hands two days later. Canada to Louisiana in just two days! The bike rides like the wind and everything about it is high quality. I can comfortably recommend this bike and company with confidence. And yes, I'll be discarding the box.

After about 150 miles on my new UD3 I will say, overall, it is a solid, well-built bike. So far the 52V 17.5Ah internal battery averages about 20 miles total range on relatively flat, smooth terrain without much wind, tires at 25psi, at level 3 ECO mode assist mostly, no cargo and a 225 lb. rider. This is well below the hi-lo range Biktrix advertises. The Electric Blue color I ordered as depicted on the website was nothing like the purplish color that was delivered (see overlay photo); but they did issue a $450 refund so I can re-paint the bike to match. The sprung cruiser style seat squeaks loudly and may have been originally designed as a torture device; after the first couple rides, I had to replace it while my blisters healed. This despite my being use to bike seats. Also, there was a shipping delay clearing customs due to an "insufficient commodity description" that took Biktrix a week to rectify.

I have owned the UD3 for several months now and riding season is just getting started. A fat tire Ebike is the way to go for anyone, because of its versatility. It can be a little difficult to load and unload due to its size and weight, but they make tilting bike racks that easily overcome that.

The bike is a joy to ride both on the road and on trails. But off-road it where it really shines. It is such a blast to ride. Provided you can stay on the bike, it will conquer any hill you can imagine.

i researched Ebikes heavily before deciding on this bike. I compared the components, specs and price to dozens of other Ebike manufacturers, as well as the reputation of the company's customer service. The process took a while but I made the right choice. Other big name bikes that have the EXACT same specs and components are selling bikes for twice what a Biktrix bike will cost you. Don't be fooled by those big names.

Also Biktrix customer service is phenomenal.

So glad I got this bike. But enough of the boring testimony from me, I gotta go for a ride!

The bike is really heavy. With the standard battery it weighs in at about 80#. The chocolate brown color is more purple than brown. I’ve had 3 people tell me they like the purple color, so it’s not just me. I don’t dislike it, but it’s not what I expected.
The bike came near fully assembled, so basically, I only needed to attach the handlebars, front fender & light, and the front wheel. The rear tire was flat and had a hole in the tube from shipping, so I took it to a local shop and had it repaired. Also had them put some sealant in it. Aside from that, everything worked fine.
The frame is larger than I expected. I’m 5’9” with 30” inseam and the stand over height is almost too tall. If you're shorter than me, you'll want the step through version, or a shorter frame.
The bike rides great & I love the way it shifts through the gears. First ride I went 14 miles in eco mode PAS 5 and the battery indicated I had 82% left. The motor is reasonably quiet and has a LOT of power! It will cruise comfortably 25-26 mph in high gear. (I don't normally ride that fast...just wanted to try it out. )
I did manage to get a bunch of thorns in both tires. The rear tire with sealant was ok, but I had to take the front to the shop for repair and add sealant. The tires have good tread, but the casing seems kind of thin. I was going to go ahead and replace them, but discovered the 27.5 x 3 tire is an oddball size, and no one in Tulsa stocks that size tube or tire. They're also not listed on Biketrix’s website as a replacement part.
The handlebar grips were not very comfortable, so I replaced them with a pair of silicone grips.
I’m at about 50 miles now, and so far very pleased with bike. I do plan to have Biketrix update the program so the throttle works as a variable speed rather than just off and on, however I find I don't actually use it very much.
Stay tuned…I will update this after I get a few more miles on it.