SMARTRAVEL DK400 Electric Mountain Bike: Is This 1200W Fat Tire E-Bike Worth It?

A powerful and rugged fat tire e-bike that handles any terrain with a strong 1200W motor and big battery for under $900, but it's heavy and doesn't fold.

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Best For

How this e-bike scores for different riding styles

Off-Road Adventure
88/100

Excellent for off-road with 1200W peak motor, 20-inch fat tires, front suspension, and dual disc brakes. The powerful motor and all-terrain capabilities make it well-suited for trails and challenging terrain.

High Performance
85/100

Strong 1200W peak motor delivers 28 MPH maximum speed with a 14.8 W/lb power-to-weight ratio. Shimano 7-speed gears provide performance flexibility for enthusiasts seeking power and speed.

Recreational Leisure
82/100

Great for casual riding with comfortable fat tires, suspension, multiple ride modes, and 5 pedal assist levels. The versatile design handles beach, snow, and neighborhood rides well.

Daily Commuting
78/100

The 28 MPH top speed and 45-mile pedal assist range make this solid for commuting, with integrated lights and LCD display. However, the 81-lb weight and lack of fenders limit practicality for daily urban use.

Cargo & Utility
65/100

Has rear rack and strong motor for hauling, but no specified max rider weight or cargo capacity limits assessment. The included cycling bag suggests some utility focus but lacks dedicated cargo features.

Compact & Portable
25/100

Not foldable and weighs 81 lbs, making it impractical for apartment storage or public transit. The 72-inch length and non-folding design severely limit portability options.

Our Verdict

The SMARTRAVEL DK400 is a strong all-around electric bike that really shines when you need power and can handle rough terrain. The 1200-watt motor is one of the biggest you'll find in this price range, and it shows when you're riding - you can hit 28 miles per hour and climb hills without breaking a sweat. The huge battery at 873.6 watt-hours is another winner, giving you up to 45 miles when you use the pedal assist mode. The fat 4-inch tires are like having monster truck wheels on a bike - they grip everything from beach sand to snowy paths to muddy trails. Add in the front suspension and strong disc brakes, and you've got a bike that feels safe and smooth even when the road gets bumpy.

This bike is perfect if you like adventure riding on trails, beaches, or snow, or if you want a tough bike for daily rides in any weather. The throttle mode means you can ride without pedaling at all when you're tired, and the 7-speed Shimano gears let you adjust how hard or easy you want to pedal. The LCD screen shows you everything you need to know, and the bright headlights mean you can ride at night safely. At $850, you're getting a lot of bike for your money - most bikes this powerful cost over $1,000. The included rear rack and bag are nice extras for carrying stuff to work or the store.

The biggest problem is the weight - at 81 pounds, this bike is heavy and hard to move around. If you live upstairs or need to lift your bike onto a car rack, you'll struggle with this one. It also doesn't fold, so you need a garage or big storage space. The 28-mile range on battery-only mode is okay but not amazing - if you want to go far without pedaling, you might want a bike with more range. It's also missing some modern features like phone app connection and USB charging ports. If you need a light bike you can fold up and carry easily, or if you want the absolute longest battery range, look at other options. But if you want power, toughness, and can handle all kinds of terrain for a good price, this SMARTRAVEL bike delivers.

What We Like

  • Really powerful 1200W motor that gets you up to 28 miles per hour - great for getting places fast
  • Super big battery at 873.6 watt-hours gives you 45 miles of riding with pedal help, perfect for longer trips
  • Fat 4-inch wide tires handle any ground - sand, snow, mud, or rough trails - like a tank
  • Front shocks and dual disc brakes keep you safe and comfy even on bumpy roads
  • Good price at $850 for what you get - most bikes with this much power cost way more

What Could Be Better

  • Really heavy at 81 pounds - hard to lift upstairs or put on a bike rack
  • Doesn't fold up so you need lots of space to store it at home or work
  • Only goes 28 miles on battery alone without pedaling - you'll need to pedal to get the full 45 miles
  • No UL safety certification listed which some people look for when buying electric bikes
  • Missing cruise control and walk mode features that make some other bikes easier to use

Standout Features

1200W Peak Motor Power
Exceeds the 750W average for mid-range e-bikes, placing it in the high-performance category
873.6Wh Battery Capacity (48V 18.2Ah)
Above the 624Wh average benchmark, providing excellent energy storage in the good-to-excellent range
20-inch x 4.0-inch Fat Tires
Extra-wide tires compared to standard 2-inch tires, offering superior traction and all-terrain capability

Features

Included Features

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

Not Included

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

Frequently Asked Questions

Common questions about SMARTRAVEL Electric Bike 1200W Peak Brushless Motor with 18.2Ah Battery,Shimano 7 Speed Gears,Up to 28MPH E Bike for Commute Mountain Beach Snow Riding,20" Fat Tire for Adults,DK400

How fast can this bike go?

The bike can go up to 28 miles per hour at top speed with the motor running. You can use throttle mode to go fast without pedaling or pedal assist mode where you pedal and the motor helps you.

How far can I ride on one charge?

You can ride about 28 miles if you only use the throttle and don't pedal. If you use pedal assist mode where you pedal and the motor helps, you can go about 45 miles. How far you actually go depends on how heavy you are and what kind of roads you ride on.

How long does it take to charge the battery?

The battery takes 5 hours to fully charge from empty. The battery comes out of the bike so you can take it inside your house or office to charge it instead of bringing the whole bike inside.

Can this bike handle sand, snow, and rough trails?

Yes, this bike is made for all kinds of terrain. It has fat 4-inch wide tires that grip sand, snow, mud, and rocky trails really well. It also has front suspension to smooth out bumps and make rough riding more comfortable.

How heavy is this bike and does it fold?

The bike weighs 81 pounds which is pretty heavy, and it does not fold up. You'll need good storage space like a garage because it's 72 inches long. The heavy weight makes it hard to carry up stairs or lift onto a car rack.

Scores

Overall Score 78/100
Value Score 88/100
Popularity 72/100

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Tags

high power motor fat tire all terrain long range battery good value off road capable heavy duty build non foldable adventure ready dual disc brakes under 900

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