isinwheel U8 Plus Electric Bike for Adults,1500W Peak Motor Hydraulic Brake Ebike,Max 20/28MPH 75-105Miles Electric Bicycle with 13AH/18AH Battery,26" Step-Thru Fat Tire Commuter E Bike for Adults
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Extended holiday returns
Returnable until Jan 31, 2026 Learn more
Returnable until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: Returnable until Jan 31, 2026
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Nov 11 – Nov 14
Recently Viewed
Color: Black
Style: U8 Ultra-105+ Miles
Features
- 1500W High-Power Motor The U8 Ultra electric bike features a brushless 1500W peak motor, delivering 28 MPH top speed and 80Nm torque to conquer 30% slopes. Rigorously tested over 1000 cycles for reliable ebike off-road performance.
- Go Farther, Ride Stronger The U8 Ultra ebike Featuring stealthily embedded 48V 18Ah battery with IPX6 waterproofing.Delivers 105+ miles range(PAS), powered by BMS 2.0 and 27100 cells for unmatched safety & durability.
- All-Terrain Fat-Tire Beast U8 Ultra Electric Mountain Bike equips 26"x4.0" puncture-proof tires with 3X wear-resistant layers and drainage grooves (5000Miles tested). Full suspension, 7-speed gears, 2000lm lights, and dual mechanical discs conquer any terrain safely.
- Smarter & Safer Riding The U8 Ultra Electric dirt bike features sealed hydraulic brakes for instant stopping power, Corrosion-resistant and low-maintenance. ideal for high-speed and steep terrain. Offers 4+1 smart modes: (PAS/Electric/Cruise/Walk/Pedal) for ultimate safety Riding
- Easy Step-Thru Design - Newly upgraded 6061 aluminum frame is lighter in weight, provides the U8 Ultra e bike better portability, good corrosion resistance and is not easy to rust.Step-Thru design is easy to get on and off the bike for riders of all ages and abilities, provides a comfortable riding position and reduces the burden on the back and hips
Bike Type: Electric Bike
Age Range (Description): Adult
Brand: isinwheel
Number of Speeds: 7
Color: Black
Wheel Size: 26 Inches
Frame Material: Aluminum
Suspension Type: Dual
Special Feature: Perfect for Daily commutes Weekend adventuresv Effortless errands
Item Weight: 85.9 Pounds
Bike Type: Electric Bike
Age Range (Description): Adult
Brand: isinwheel
Number of Speeds: 7
Color: Black
Wheel Size: 26 Inches
Frame Material: Aluminum
Suspension Type: Dual
Special Feature: Perfect for Daily commutes Weekend adventuresv Effortless errands
Item Weight: 85.9 Pounds
Style: U8 Ultra-105+ Miles
Model Name: U8 Ultra
Manufacturer: Shenzhen Xincheng Times Technology Co.,Ltd
Frame Size: Large
Package Weight: 100.5 Pounds
Item Dimensions LxWxH: 78 x 28.7 x 46.9 inches
Brand Name: isinwheel
Date First Available: June 25, 2025
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Nov 11 – Nov 14
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: Black
Style: U8 Plus-75+ Miles
I bought two for my 14-year-old sons, who love this bike. Overall, they're very nice bikes, but too aggressive for me. What I don't like is when I turn on the assist, the bike goes 17 mph after four pedal strokes. It's practically impossible to ride slowly with the assist. If you want to go slowly, you'll have to use the throttle or not to use assist. Overall, the bike is beautiful, sturdy, and worth the money. Very powerful !
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Reviewed in the United States on October 2, 2025 by Sebastian K Sebastian K
Color: Black
Style: U8 Plus-75+ Miles
Bought this for my husband who is over weight, diabetic and sedentary! I didn't want to spend $2k on a bike shop bike and just wanted to see if he'd give it a try. He is 71 and hasn't been on a bike of any kind in over 50 years! HE LOVES IT!!! Macho man even wears a helmet!! Pros: Easy to assemble, easy to ride! Cons: Haven't found one yet!!
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Reviewed in the United States on August 18, 2025 by Daryl Jean
Color: Green
Style: U8 Plus-75+ Miles
Bike came quick ,and was,nt to hard to assemble ,but the rack was a challenge trying to line up the wholes i think tge screws should,ve been longer ,and the wholes should,ve been centered more.overall good price and rides great.749$ battery is removable.
Reviewed in the United States on October 6, 2025 by mike
Color: White
Style: U8 Ultra-105+ Miles
Let me begin with… I spent no less than 30 hours researching which e bike for my college senior son, who is 6’4 and 256 lbs. he lives where there are hills, and has a car, but on campus- an e bike is the ultimate convenience. I made a spread sheet- to compare allll the things- the motor, the battery, the weight Capacity, the height recommendations, the torque, the grade aptitude, the weight of the bike, personally we needed a non folding (for his size- we wanted more rigidity in the frame ) the mph, the mile range, the tire size, the frame length , step thru - you name it. And this bike, in this price point - knocked it outta the park. My son had been using it for about 9 days so far- and he absolutely loves it. He mentioned that it easily does the speed it promised- it handles well and he’s super happy. I did order a wider seated seat, before the bike came (the bike was delivered to him at school as a b day gift) and he accidentally forgot to take the good seat home- so he’s been “suffering” with the stock seat until he comes home for the better one next week… lol. He’s young, he’ll survive- but def change the seat out- and there you have it!
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Reviewed in the United States on October 7, 2025 by Barbie garcia
Color: Green
Style: U8 Ultra-105+ Miles
I am 6'2", 220lbs. I live in a very hilly area. Older too. I wanted an ebike that could handle all that. This bike does! This motor does not struggle on the hills at all and the 18ah battery eliminates range anxiety. I did have a mechanical issue. Support was easy to contact very helpful. This is my first ebike and I'm impressed and hooked.
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Reviewed in the United States on October 17, 2025 by DS
Color: Green
Style: U8 Plus-75+ Miles
The bike is actually well made and I was impressed as I assembled it but it had the same problem that other people have had: when you use the electric assist, even on the lowest setting (PAS-1) the power comes on almost explosively and you go to full speed....it is DANGEROUS and DEFECTIVE!!!! You have to completely stop peddling and apply the brakes....if you peddle at all, even super slowly, the power is at full and propels you forward rapidly, it's so bad!!! I tried a simple test. in power level 1 I started to peddle very slow but as soon as you turn the peddle, BAM! The power hits at full and runs you up to 20mph and all you have to do is barely move the peddles and if the bike senses any peddle movement, it delivers full power to the motor and you fly down the road. Now get this: before purchasing this bike I read the reviews and saw a few people mention this issue. I contacted customer service (before I bought) and they returned my message with typical word-salad; lots of big words with assurance of quality, happiness, lucky-best technology but they didn't address my question. I replied with a bit of attitude and they moved my concern to somebody who actually read my message and understood English....they assured me the reviews mentioning unrestrained power were just a fluke and the issue had been addressed. Well, my bike arrived and it has the same issue! I have another bike made with the same parts but under the name Vipspeed. It has a power assist system that actually works properly, the PAS-1 gives you just a modest little boost but you have to do about 70% of the work and it even cuts-out after 5mph so it's a true Eco-mode with just 10-15% assist....but this bike, it gives you 100% power and blast you up to 20mph+ if you even move the peddles in the least. DEFECTIVE & DANGEROUS!
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Reviewed in the United States on October 17, 2025 by Steve R
Color: Black
Style: U8 Plus-75+ Miles
The controller display is like much more expensive bikes. All bikes I've looked at have distance and trip readout and pedal assist. This bike has mileage in 1/10th of a mile which I like, plus Volume and Current readouts. This bike not only has 5 levels of pedal assistance shown with 5 bars, but it also has "real time" pedal assist shown separately which is great for preserving battery life.
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Reviewed in the United States on September 16, 2025 by Charles Buck
Color: Black
Style: U8 Plus-classic
Well-built and battery last longer than you can ride the bike (my seat gets tired). Only negative is there no operating instructions on how to efficiently utilize the bike, had to ride it for many miles to figure out best power settings and speed to maximize the battery. Recommend buy for sure!
Reviewed in the United States on August 22, 2025 by James Spaulding