BIGNIU BG-X Electric Bike for Adults,1500W Brushless Motor 48V/31.5Ah Up to 40 Miles E-Bike Front/Rear Turn Signal Dual Suspension Ebikes
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Color: Gold
Features
- Over 40 Miles RangeOur electric bike has a built-in 48V 31.5Ah battery, ensuring an impressive range of over 40 miles on a single charge. With the BIGNIU BG-X electric bike, you no longer have to worry about distance.
- Double Shock AbsorptionUniquely designed BG-X electric bicycle adds front double shoulder inverted shock absorption and rear double suspension shock absorption, which can absorb 80% of bumps and provide you with a smooth and comfortable flat ride.
- 1500W MotorOur 1500W (rated power) rear-wheel drive motor provides torque and unique features to add power to your daily commute riding.
- Safe Riding SystemBG-X electric bicycle provides a complete riding system, including front/rear turn signals, dual hydraulic disc brakes with large discs, horn, LCD screen, speedometer, odometer, Trip odometer, etc. It's easy to operate, just hop on, turn the handlebars and off you go!
- Assemble & Customer Service (Please keep the original packaging box for 30 days)Your adventure begins easily as the e-bike comes 85% pre-assembled. Find assembly videos and updated manuals on the product page to ensure easy setup. If you have any questions about your BIGNIU electric bike, our customer service team is here to help.
- Your Safety First: Our electric commitment to safety is certified by UL 2849 (complete electric bicycles). UL&GCC Certification
Description
Returns: Items eligible for return or exchange within 30 days of receipt in original packaging. BIGNIU BG-X BIGNIU BG-X PRO BIGNIU BG-S BIGNIU BG-S PRO BIGNIU BG-XMINI
Bike Type: Electric Bike
Age Range (Description): Adult
Brand: BIGNIU
Number of Speeds: 3
Color: Gold
Wheel Size: 20 inches
Frame Material: Aluminum
Suspension Type: Dual
Special Feature: Dual Suspension
Included Components: Tool Kit
Bike Type: Electric Bike
Number Of Speeds: 3
Suspension Type: Dual
Additional Features: Dual Suspension
Brake Style: Disc
Power Source: Rechargeable Battery
Wattage: 1500 watts
Lithium Battery Energy Content: 1.51 kwh
Bicycle Gear Shifter Type: Thumb
Bicycle Drivetrain Type: Derailleur
Electric Assist Type: Electric Motor
Color: Gold
Theme: Motorcycle
Style Name: Urban
Frame Material Type: Aluminum
Warranty Type: 12-month warranty
Maximum Weight Recommendation: 300 pounds
Age Range Description: Adult
Brand Name: BIGNIU
Included Components: Tool Kit
Model Number: BG-X/FT-02
Model Name: BG-X/FT-02
UPC: 728171997133
Manufacturer: BIGNIU
Item Type Name: E-BIKE
Warranty Description: 18 months
Wheel Size: 20 inches
Size: Large
Wheel Width: 5 inches
Frequently asked questions
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Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Purple
Bike definitely comes with assembly required, for the price it’s a great purchase, it’s definitely not for a younger unexperienced audience with E bikes, it definitely is a road only and not a bike trail type of E bike as it’s basically a E bike motorcycle. Once assembly is completed, there needs to be a note that one of the brakes has to be pumped before you can accelerate. Had to find that out through hands-on troubleshooting on my own as that was not a part of the instructions of operations. I do have a couple of negatives that I would like to address. 1, there is no key required for a ignition/Killswitch. Which means if somebody knew how to operate it while I have it parked and not locked-up and they knew how to start it and accelerate somebody could ride off. There is a key that comes with the Bike for the battery which is the “gas tank” / battery, but it is only to disengage the lock to remove the battery from the frame. 2, and I think this is important. Any inclined hill the Bike suffers from fully accelerating to top speed., from my experience and I’ve put on 400 miles so far any incline uphill causes the bike to slowly accelerate and not even break 30 miles an hour, now once it levels off or there’s a hill downward it fully accelerates very quickly, that said a full downhill equaling 3 blocks + I’ve gotten the bike up to 45 miles an hour, one of the main reasons I chose this bike for purchases to keep up with residential traffic, some roads in my metro area, which can be 35 mile an hour roads it takes a minute to fully accelerate, I do think outside temperature makes that a factor as well, again any uphill it struggles to meet the 34mph and can take a solid block to reach that top speed. Don’t get me wrong once it gets to top speed. It’s a quick machine and fun ride. Another negative is although it has the back spring shocks with shock absorber canisters the seat will bottom out and hit the back fender. That said it does come with all the safety features displayed., front head light bright LED light, turning signals, back brake light that illuminates brighter when breaking back brake turning signals as well, it very much rides like a motorcycle and it’s turning radius. The battery life is amazing. I was out on a ride for almost 3 1/2 hours and I still had three bars left. The pedal assist function only goes as fast as you pedal, which might be looked at as a negative as well. In fact, I never even really pedal it, and mostly just use the pedals as a stationary foot rest. It’s definitely a head turner and I get stopped and asked about the bike almost anywhere I go. Definitely the right Bike for the right type of experienced rider. 9.7. /10
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Reviewed in the United States on May 22, 2026 by CNick
Color: Green
Ok so I was researching e-bike or scooters for at least 3 months before pulling the trigger on this bad boy here. Building the bike was fairly straightforward if you watch the Bigniu Bike Installation video on YouTube. I watched it in .75x normal speed to make pausing it a bit easier. The bike is pretty heavy, but with a heavy duty tubular chassis like this one I’d hardly call it a surprise. The looks of this thing are top tier. I’m 6’0” 220 pounds and I fit on it quite comfortably. I’ve put about 10 miles on it so far so not a ton of ride time but I already love it. I rode it at night with the headlights on and it was plenty bright for a night rider and having blinkers and a tail light makes me feel extra safe on the road. The pedals and cranks are a bit light so I might try to adjust them to have a higher gear ratio for me, as I also ride spin bikes quite often and pedaling on this bike really doesn’t generate any speed. I also don’t know if the bike has regenerative breaking of any kind, but with a battery this size who cares. My breaks squeal a little bit under pressure but I think I just need to figure out how to adjust them. The default settings on the bike computer are set to 3 modes of pedal assist, however if you watch YouTube videos on how to change the settings, you can update the computer for up to 5 levels of pedal assist. I was hoping there was a way to increase the output to the motor to increase top speed but alas I think my top speed being my size is roughly 34-35 on flat road, and I’ve gotten close to 40 downhill before having to brake. She had more to give too. I will update in the spring with a warm weather endurance test to see what kind of distance I can get, but right now it’s sub 30 degrees outside where I live and I already know that’s going to limit the distance. All in all, I’m am super happy with my purchase. Definitely get a helmet since this thing hauls ass. Don’t wait, buy this bike. It’s awesome. I just wish there was a easier way to store it!
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Reviewed in the United States on December 14, 2024 by KeensPurchaseRevs
Color: Purple
This is the coolest electric bike on the planet. It only took an hour to set up and I love riding it. I have been waiting forever for someone to make a chopper electric bike and finally they did. This thing is so cool. I would recommend this to anyone and it does actually go 40 miles an hour headlights tail light turn signals and horn all included.👍🏻👍🏻👍🏻
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Reviewed in the United States on June 6, 2026 by Jonathan Kaye
Color: Purple
I saw this e-bike on line and feel in love with it so i ordered one, it was delivered as promised and with no damage at all, now that i have it i love it even more, its much nicer once you actually have it, bike is well built, the quality is top notch, I have two other e-bikes and this one is my favorite and will be the one i use the most for sure. It rides great, and has plenty of power and is fast. I get a lot of compliments as well. I would highly recommend this bike. There are alot of youtube video's on this bike as well you can check out, soon I will post videos as well
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Reviewed in the United States on July 29, 2024 by Amazon Customer
Color: Gold
I bought quite a few ebikes on here, but this bike is be far my favorite ebike. I love the chopper design. The size was perfect for my height. I don't think it's super easy to assemble, but i think moderate level people should put it together. The instructions was garbage, I had to YouTube how to build it. Very smooth ride. I didn't experience any noise, but some people have experienced squeaking.
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Reviewed in the United States on January 3, 2026 by The S
Color: Dark Black
The bike is SO many things that it claims to be...VERY hearty battery and pretty well assembled for an inexpensive Chinese bike. It is a good urban commuter. Very fast. I am very competent at building/fixing things...I have a large shop. And, with no assembly instructions, I normally have no problems. But I failed to grasp the bearings that were mixed in the packaging. They seem to have been meant to have been "press-fit" into the frame. They weren't in place and I had to figure out (with no instructions what-so-ever) where they went. Anyway...after riding it for a couple of miles, I realized that it NEEDED bearings in the forks/yoke. (I should have known this, but I'm faaaar from perrrfect). Anyway, the hydraulic brakes are strong. It looks cool. The speed is more than I want and I think many people will like this bike. Having been a "biker" for over 60 years, it seems "squirrely" to me, but I guess that's what it has to be...being this light.
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Reviewed in the United States on May 28, 2024 by Zolmo
Color: Dark Black
Nice bike but under powered. Rides and handles great
Reviewed in the United States on June 25, 2025 by Everett Thoman
Color: Purple
From the moment I saw this E-bike online, I was excited. I am a fan of Chopper bikes, and this seemed like the perfect marriage between an e-bike and a chopper. I often hear tons of negative stories about the lack of communication and support from e-bike companies so I was hesitant but decided to go for it. The BIGNIU BG-X arrived in perfect condition and was easy to assemble. I did have an issue with one of the bolts for the front caliper which was slightly bent and it was obvious that it was damaged from lack of care while being shipped. I contacted BIGNIU via their FB Messenger link and they immediately sent an entire set of replacement bolts. Otherwise, this e-bike has been nothing but fun. What has been more surprising, is that once I contacted BIGNIU support, I kept asking for additional features that were just my imagination of what my techie obsession wanted. You can't imagine how surprised I was when they actually listened and so far have designed, tested, and sent me two 2 of the things I asked for. In a time when the market is saturated with e-bike companies and horror stories, BUGNIU has been a breath of fresh air and has helped to restore some of my confidence. And, before the critics respond to this review, I have NO affiliation with BIGNIU. I am just someone who has been burned a few times in the past, took a chance with this e-bike, and felt compelled to tell of my experience. As you can see in one of my photos, I have even added CarPlay to my BG-X :-)
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Reviewed in the United States on August 5, 2024 by JULIAN PERRY