LONG SENG A39 Fat Tire Electric Bike: Can It Really Hit 100 Miles on One Charge?

A speed monster with 3000W dual motors and 100-mile range for under $1000, perfect for off-road adventures and power seekers, but too big for small spaces and missing some safety certifications.

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Best For

How this e-bike scores for different riding styles

High Performance
98/100

Exceptional performance with 3000W dual motors, 39mph top speed, 45-degree climbing ability, and 100-mile range. The 21-speed drivetrain and switchable motor modes provide ultimate versatility for performance enthusiasts.

Off-Road Adventure
95/100

Outstanding for off-road with 3000W dual motors, 26-inch fat tires, front suspension, 45-degree climb capability, and aviation aluminum frame. The high power-to-weight ratio and all-terrain design excel in rugged conditions.

Recreational Leisure
78/100

The comfortable features like adjustable seat, smooth suspension, and 100-mile range make it great for leisurely rides. However, the aggressive power specs and lack of step-through design are overkill for casual cruising.

Daily Commuting
72/100

The 100-mile range and 39mph top speed are excellent for commuting, but the lack of fenders, rear rack, and UL certification reduce practicality. The fat tires and heavy build also make it less ideal for pure urban commuting.

Cargo & Utility
45/100

While the powerful dual motors can handle heavy loads and steep inclines, the lack of rear rack and unspecified weight capacity limit cargo functionality. The removable battery is a plus for charging convenience.

Compact & Portable
15/100

Not foldable and dimensions of 76.77 x 27.56 x 44.88 inches make this unsuitable for compact storage or portability. The fat tire design and dual motor system add significant bulk.

Our Verdict

This LONG SENG electric bike is a powerhouse built for people who want serious speed and range. With dual motors that put out 3000 watts total, this thing can zoom up to 39 miles per hour - faster than most cars in a parking lot. The huge battery gives you up to 100 miles on a single charge, which is enough to ride for days without plugging in. You can switch between using one motor or both, so you save battery when you just want to cruise, or blast both motors when you need to fly up a steep hill. The bike can climb hills that are tilted 45 degrees, which is super steep - like climbing stairs on a bike.

This bike is perfect for adventure riders who want to explore trails, beaches, and mountains. The fat tires are 4 inches wide and roll over anything - sand, snow, rocks, or mud. If you have a long commute or love taking all-day rides, the 100-mile range means you won't get stuck with a dead battery. People who want the fastest, most powerful bike for under $1000 will love this. The color screen shows you everything you need - speed, battery left, and what mode you're in. The bright LED lights keep you safe at night. For $999, you get crazy power and range that usually costs way more.

But this bike isn't great for everyone. If you live in a small apartment or need to fold up your bike, look somewhere else - this one doesn't fold and is really big. It's missing some safety papers called UL certification, which means it might not be allowed in some buildings or bike paths. You don't get fenders to block rain or a rack to carry bags, so you'd need to buy those separately. We also don't know how much weight it can hold, which is important if you're a bigger rider or want to carry lots of stuff. With only 8 reviews, it's a newer bike without a long track record yet.

What We Like

  • Super powerful 3000W dual motors let you hit 39mph and climb crazy steep 45-degree hills with ease
  • Amazing 100-mile range on one charge means you can ride all day without worrying about running out of battery
  • Giant 1196Wh battery (52V 23Ah) is one of the biggest you can get and charges separately from the bike
  • Fat 26-inch tires handle any terrain - sand, snow, mud, or rocky trails - like a monster truck
  • Comes with free extras like a pump, phone holder, and bike lock which saves you money on accessories

What Could Be Better

  • Not foldable and pretty big (almost 6.5 feet long) so you need lots of storage space
  • Missing UL safety certification which some places require and could be a safety concern
  • No rear rack or fenders included so carrying stuff or riding in rain needs extra add-ons
  • Only 8 customer reviews so it's hard to know if it holds up over time with real use
  • Weight capacity not listed which makes it unclear how much stuff or what size rider it can handle

Standout Features

3000W Dual Motor System
2.5x more powerful than average 750W e-bikes, enabling 39mph top speed vs typical 20-28mph
100-Mile Maximum Range
Nearly double the 50-60 mile average, with massive 1196Wh battery capacity vs typical 500-750Wh
45-Degree Climbing Capability
Exceptional hill-climbing ability far exceeding typical 15-25 degree e-bike capabilities

Features

Included Features

Fat Tires
Integrated Lights
LCD Display
Pedal Assist
Removable Battery
Suspension
Throttle

Not Included

App Connectivity
Cruise Control
Fenders
Foldable
Rear Rack
UL Certified
USB Charging
Walk Mode

Frequently Asked Questions

Common questions about Electric Bike for Adults,39MPH/36MPH-100 Miles/90 Miles (3000W/2000W) Electric Bicycle with 52V/48V/23Ah Battery, 26'' Fat Tire Fast E-Bike

How fast can this electric bike go?

It can reach up to 39 miles per hour when using both motors together. You can also switch to just one motor which goes a bit slower but saves battery life.

How far can I ride before the battery dies?

You can go 70 to 100 miles if you pedal and use the motor to help you. If you just use the throttle without pedaling, you'll get 40 to 60 miles per charge.

Can this bike handle steep hills?

Yes, it can climb really steep hills up to 45 degrees. The dual 3000W motors give it tons of power to go uphill, even on rough terrain like dirt trails or mountains.

What kind of terrain can the fat tires handle?

The 26-inch wide fat tires work great on sand, snow, mud, rocky trails, and regular roads. They're built tough for off-road adventures but also ride smoothly on pavement.

Does it come with lights and a screen?

Yes, it has bright LED headlights and tail lights for riding at night. The color screen shows your speed, battery level, pedal assist mode, and how many miles you can still go.

Scores

Overall Score 88/100
Value Score 95/100
Popularity 78/100

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Tags

high performance long range fat tire dual motor off road capable budget performance all terrain speed demon

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