Hi everyone! This is the D3F folding mini
e-bike from DYU cycles. It's compact, sturdy, simple to set up and ride, and probably the safest
e-bike you could ever buy as a first-time e-bike purchase. Now, DYU did send this to me to review
for you, but I assure you I did ride it around for a few weeks and I do have some honest feedback.
The majority of it is good, but there are a few things that I did not like. More on that in a
moment. The first thing I would say about the D3F is how simple it is to own and operate. There are
no shifters, cassettes, or derailleurs as it's a single-speed bike, with a 12-tooth gear in the
rear and a larger 38-tooth gear in the front. And, while some might not like a single speed, I found
this to be a breath of fresh air as it adds to the simplicity of purchasing your first e-bike.
fact, this bike is probably the least complicated e-bike you could ever own and it's a seriously
good deal coming in at under $500. If you're inclined to learn more about the D3F or to buy
one for yourself we hope you'll use the link in this video's description as it not only takes you
to the current best price in your region, but we also negotiate discounts with the manufacturers
that we work with specifically for our viewers. My next favorite thing about the D3F is its
Featuring small 14-inch by two and a quarter-inch tires, handlebars and pedals that
fold, and a lightweight frame this bike can be stored almost anywhere. And, while most standard
e-bikes weigh between 50 and 100 pounds, the DYU D3F weighs a mere 38 pounds, or 17 kilograms if
you're on the metric system. And despite that lower weight, the D3F still feels pretty hardy
supporting a total weight of up to 265 pounds. Personally, I'm six foot even and about 175 pounds
and I had no trouble riding this bike whatsoever. Another thing that I love about the D3F is that
the electronics and battery housing has a nifty cutout section that allows you to grip the frame
like a handle.
This is great if you live in an apartment and have to bring your e-bike up or
downstairs. It's also great for lifting the bike in and out of your vehicle's trunk. And while
the D3F doesn't fully fold in half like some other e-bikes, the handlebars do fold to one side and
the seat posts can be removed completely resulting in folded dimensions of 46 by 8 by 28 inches. And
to take portability even one step further when i was putting the D3F into the shed on my back porch
i noticed that the pedals can actually be folded too. While this only saves a few inches on either
side of the bike this clever feature could be the one thing that helps you fit your new ebike into
a nice slotted area in your garage, or apartment. So, in terms of portability, the DYU D3F
definitely gets an A+ from us. Now, let's run down the operating buttons. The left-hand grip has the
power on/off button and an adorable little belt. The right-hand grip is where the battery indicator
and headlight on/off buttons are located.
To turn the headlight on hold down the button for three
seconds. But, be careful though as the light runs off the internal battery and, at least on mine,
the light did not turn off on its own. It should also be noted that the headlight is mounted to the
frame and not the fork so the headlight does not turn to match the steering direction. Oh, and
the rear tail light is battery operated so it won't drain your battery. The right hand grip is
a full-size twist grip throttle which I tend to like more than thumb or half grip throttles.
It just gives you kind of a motorcycle feel.
And speaking of which, the D3F
is legally classified as a class 2 e-bike in the U.S. Meaning it has a motor and
throttle but won't exceed 20 miles per hour. In fact, the D3F has a top pedal-assisted speed
of 15 and a half miles per hour. Which is pretty much what I saw during my testing. The 10 amp hour
battery pack is located within the central plastic housing unit and features 360 total watt-hours
of capacity. And, speaking of charge, the charge plug is located on the bottom right-hand side
of the electronics housing unit.
The design of the D3F really is quite unique. The flat black
paint job with red trim and mag tires ties the design together holistically and reminds me of
the paint job from the A-Team van. Yeah, A-Team. Another thing I really appreciate about the design
of the D3F is how well the wiring is integrated into the frame. The brake lines and electric
cables have this twisted hard plastic wrap that kind of resembles an old phone cord. The headset
and handle grips really feel nice and sturdy in your hands. There is no front or rear suspension
which is typical for an e-bike in this price range, but the included front and rear fenders
work great at keeping dirt and mud off of your clothes. There is also a single-sided crankset
chain guard that keeps the chain from coming off as well as keeping your pant legs clean. Oh,
and did I mention this sweet little kickstand? So, just who is this e-bike for? I think the D3F
is perfect for anyone looking to spend about $500 on an extremely portable e-bike. I also think the
simplicity of the D3F, when coupled with the lower top speed of 15 miles per hour, makes this the
perfect option for anyone looking to dip their toe into the world of e-bikes for the first time.
The single-speed freewheeling crank means there are no complicated shifters to figure out.
pedal, or throttle, and go. Having this said, if you're an e-bike superstar with a quiver full
of Aventon, or Rad Power Bikes, then eureka! the D3F is absolutely the perfect e-bike for you. But,
I want to know your thoughts. Are you interested in buying the DYU D3F? If so let me know in
the comments down below. I'm really curious to know why and what you have to say. And, if you
like the D3F but want to see what other mini and micro e-bikes are on the market then you're
in luck! We've done a lot of research on the topic and put everything we know into this video
right here. Be sure to check it out, right now!.