What Is the Fastest Fat Tire Electric Bike? (Legal or Not)


Fat bikes have risen significantly in popularity and quickly become the preferred bikes for those seeking adventure on off-road trails, rough terrain, gravel roads, snow, or mud. Fitted with an electric motor, these e-bikes pack a powerful punch to keep those large wheels moving and get you to your destination in no time. But which is the fastest e-bike on the market today? 

Two of the fastest fat tire e-bikes are the Biktrix Juggernaut Hub Duo and the Biktrix Juggernaut Ultra Duo 3, which reach a maximum speed of 35 mph (56 km/h). They run on a powerful 750W rear hub motor and 1000W mid-drive motor, respectively, and have a range of more than 45 miles (72 km). 

Other electric bikes with fat tires that cross the 28 mph (45 km/h) threshold include the following: 

  • Juiced Bikes HyperScorpion
  • Aventon Aventure 
  • Ride1Up Cafe Cruiser
  • Engwe EP-2 Pro
  • Juiced RipCurrent S 
  • Wallke X3 Pro 
  • Rambo Venom 
  • Juiced Scorpion  
  • Aventon Sinch (folding fat tire)

These options have a speed limit of 28+ mph (45+ km/h) and feature a 750W rear hub motor. In this article, I’ll take you through the key features of these electric bikes, including the range, motor wattage, and speed, and show you how they compare to each other. I’ll also discuss some factors to consider when making your final choice. 

For a quick glance, check out the tables below.

Young Mna riding on fat tire e-bike in the woods

The Fastest Fat Tire E-Bikes on the Market

Whether you fancy a quick trip to the mall, a change of scenery on the hilly terrains, or a ride on the sandy beach, your best fat tire option is an e-bike that blends speed with performance. 

The table below shows some of the best fat tire electric bikes in the market and their relative top speeds. 

E-BikeTop SpeedMotor PowerRange
Ride1Up Cafe Cruiser28 mph (45 km/h)750W30-50+ miles (48-80+ km)
Aventon Aventure28 mph (45 km/h)750W45+ miles (72+ km)
Aventon Sinch28 mph (45 km/h)750W40 miles (64 km)
Biktrix Juggernaut Hub Duo35 mph (56 km/h)750W45 miles (72 km)
Biktrix Juggernaut Ultra Duo 335 mph (56 km/h)1000W45+ miles (72+ km)
Juiced Bikes Hyperscorpion30+ mph (48+ km/h)1000W70+ miles (113+ km)
Juiced Bikes Scorpion X28 mph (45 km/h)750W45+ miles (72+ km)
Juiced RipCurrent S28 mph (45 km/h)750W70+ miles (113+ km)
Rad Power Bikes RadRover 6 Plus20 mph (32 km/h)750W45+  miles (72+ km)
Rad Power Bikes RadExpand20 mph (32 km/h)750W45+  miles (72+ km)
Ecotric Hammer20 mph (32 km/h)750W30+ miles (48+ km)
Engwe EP-2 Pro (Amazon)28 mph (45 km/h)750W50+ miles (80.5 km)
Wallke X3 Pro (Amazon)28 mph (45 km/h)750W60+ miles (97+ km)
Lectric XP 2.020 mph (32 km/h)500W45+ miles (72+ km)
Rambo  Krusader20 mph (32 km/h)500W dual38+ miles (61+ km)
Rambo Venom15 to 30 mph (24 to 48 km/h)1500W40 miles (64 km)
Rambo Savage19 mph (30.6 km/h)750W35 miles (56 km)

Table 1: The best fat tire electric bikes in terms of top speed, range, and wattage.

Winners:

  • Biktrix Juggernaut Hub Duo
  • Biktrix Juggernaut Ultra Duo 3
  • Juiced Bikes Hyperscorpion
Juiced Bikes Hyperscorpion in silver
Juiced Bikes Hyperscorpion is one of the fastest fat tire e-bikes at 30+ mph!

Many electric bicycles can handle speeds of more than 20 mph (32 km/h). However, the Juggernaut Hub Duo and the Juggernaut Ultra Duo 3 are ahead of the pack, with top speeds of more than 35 mph (56 km/h). The Hyperscorpion comes in right behind at 30+ mph (48+ km/h) and has the greatest range of 70+ miles (133+ km) of the group!

Blue Biktrix Juggernaut Hub Duo E-Bike
Juggernaut Hub Duo with fat tires
Red Biktrix Juggernaut Ultra Duo 3
Juggernaut Ultra Duo 3 fat tire electric bike

Other select fat-tire e-bikes that have broken the 28 mph (45 km/h) speed barrier include:  

  • Engwe EP-2 Pro 
  • Ride1Up Cafe Cruiser
  • Rambo Venom 
  • Juiced RipCurrent S 
  • Wallke X3 Pro 
  • Juiced Scorpion X
  • Aventon Aventure

Make sure to read this article to find the best fat tire electric bikes made in the USA!

Juiced Bikes Ripcurrent S Step-Through
Juiced RipCurrent S even comes in a step-through model!

Things To Consider When Buying an Electric Bike

To select the optimal fat-tire e-bike, you need to consider the following criteria: 

  • Maximum allowed speed in your state/region 
  • Weight 
  • Price 

I’ll explain these factors below.

Allowed Speed Limit 

How much speed you need is personal. But just like your car or moped, there are applicable speed limits that determine how fast you can go. Regulations in the United States limit the maximum allowable motor-assisted speed to just 20 mph (32 km/h) in many locations, including National Parks. 

Therefore, even though a fat tire electric bike can go up to 28+ mph (45+ km/h), riding one that goes above the speed limit is typically not allowed. While you may be able to get away with this in off-grid terrain, you could be issued a ticket if you exceed this limit. 

See this article on electric bicycle classification to understand the limitations.

Winners: All options outlined in the table above meet this minimum 20 mph (32 km/h) threshold.

Want to know how to make your e-bike faster anyways? Take a look!

green Aventon Aventure Electric Bike
Aventon Aventure fat tire e-bike holds 400lbs!

Weight Limit

Another key differentiating factor between most e-bikes is their weight limits (maximum load capacity). The table below summarizes the weight limit on each bike. 

Fat Tire Electric BikeMaximum Weight limit 
Biktrix Juggernaut Hub Duo330 lbs (150 kg)
Biktrix Juggernaut Ultra Duo 3380 lbs (172 kg)
Juiced Bikes Hyperscorpion275 lbs (125 kg)
Rad Power Bikes RadRover 6 Plus275 lbs (125 kg)
Ecotric Hammer265 lbs (120 kg)
Engwe EP-2 Pro330 lbs (150 kg)
Ride1Up Cafe Cruiser275 lbs (125 kg)
Juiced RipCurrent S275 lbs (125 kg)
Juiced Bikes Scorpion X275 lbs (125 kg)
Wallke X3 Pro300 lbs (136 kg)
Rad Power Bikes RadExpand275 lbs (125 kg)
Lectric XP 2.0330 lbs (150kg)
Rambo  Krusader300 lbs (136 kg)
Rambo Venom300 lbs (136 kg)
Rambo Savage300 lbs (136 kg)
Aventon Aventure400 lbs (181 kg)
Aventon Sinch300 lbs (136 kg)

Table 2: Maximum load limit for different fat tire bikes.

Winner:

  • The Biktrix Juggernaut Ultra Duo 3

Seven of the 15 options listed above have a maximum weight limit of 300 lbs (136 kg). However, if you want to match speed with optimal load capacity, these are your best fat tire choices: 

  • Biktrix Juggernaut Ultra Duo 3 
  • Biktrix Juggernaut Hub Duo 
  • Juiced Bikes Hyperscorpion
  • Lectric XP 2.0 
  • Engwe EP-2 

This will come in handy if you decide to pack a few supplies for your trip. 

Lectric Bikes XP Fat Bike
Lectric XP Fat Bike with 20″ tires.

Fat Bike Price

Some of the fastest electric fat bikes in the market demand a hefty price. Given the wide variety of electric bicycles with a speed of over 28 mph (45 km/h), it’s essential to factor in the price when making your selection. 

So how do the fastest e-bikes compare to each other in terms of cost? 

Note that the numbers below aren’t exact values, and your final purchase price may vary depending on how and when you buy a bike. 

E-Bike Price (USD)
Aventon AventureStarts at $1,999
Aventon SinchStarts at $1,699
Ride1Up Cafe CruiserStarts at $1,595
Biktrix Juggernaut Hub DuoStarts at $2,399
Biktrix Juggernaut Ultra Duo 3Starts at $3,699
Engwe EP-2 ProStarts at $1,050
Juiced RipCurrent SStarts at $2,099
Juiced Scorpion XStarts at $2,199
Juiced Bikes HyperscorpionStarts at $2,799
Wallke X3 ProStarts at $1,999
Rambo VenomStarts at $8,499

Table 3: Price comparison

Winners (least expensive):

  • Engwe EP-2 Pro
  • Aventon Sinch
  • Ride1Up Cafe Cruiser

As expected, the two fastest electric fat bikes in the market attract a premium price, and by far the most expensive option is the Rambo Venom.

One of the key takeaways from this table is that for a fraction of the cost of the two highest-priced fat tire electric bikes, you can purchase some of the fastest electric bikes on the market. 

For instance, the Aventon Aventure, and the Wallke X3 Pro are priced below the $2,000 mark but will still deliver powerful performance and a speed of 28+ mph. 

At the end of the day, your choice will depend on whether you’re willing to pay top dollar for a higher top speed, which you are unlikely to hit with current e-bike speed regulations in the US.

For a fast, high-quality, well-priced electric bike from the biggest North American e-bike brand, you might wish to take a look at the fastest Rad Power Bikes model and speed guide.

Best Value for Money: The Biktrix Juggernaut Hub Duo

After considering the price, the weight limit, and the speed, The Biktrix Juggernaut Hub Duo offers the best value for money. 

Because top speed is important in this assessment, the major choice is between the Biktrix Juggernaut Hub Duo and the Biktrix Juggernaut Ultra Duo 3 e-bikes. 

The table below shows how these two electric bicycles compare to each other: 

PriceWeight LimitMax Speed
Biktrix Juggernaut Hub Duo$2,399330 lbs (150 kg)35 mph (56 km/h)
Biktrix Juggernaut Ultra Duo 3$3,699380 lbs (172 kg)35 mph (56 km/h)
WinnerBiktrix Juggernaut Hub DuoBiktrix Juggernaut Ultra Duo 3draw

Both options deliver the same top speeds of up to 35 mph (56 km/h). Although the Ultra Duo 2/3 models have a higher load capacity, the difference is just 50 lbs (22 kg). Therefore, you would be hard-pressed to spend over $1000 extra to have an extra 50 lbs (22 kg) of load capacity. 

Below are the key differences between the Juggernaut Hub Duo and the Juggernaut Ultra Duo 3. 

Motor

The Juggernaut Hub Duo is powered by a 750W rear hub electric motor, while a 1000W mid-drive motor powers the Juggernaut Ultra Duo 3 e-bike. So, the Juggernaut Ultra Duo 3 packs on more power than the Juggernaut Hub Duo. 

Sensors

The Juggernaut Ultra Duo 3 electric bike has a cadence and torque sensor, while the Juggernaut Hub Duo only has a cadence sensor. 

So, while the Juggernaut Hub Duo only provides basic pedal assist technology, the Juggernaut Ultra 3 offers greater functionality, which may positively impact your e-bike’s performance. 

Torque

The Juggernaut Ultra Duo 3 fat tire electric bike delivers up to 160-newton meters (118-foot pounds) of torque when compared to the Juggernaut Hub Duo, which only provides 85-newton meters (63-foot pounds) of torque. As a result, your legs will work less on the Juggernaut Ultra 3 than the Juggernaut Hub Duo, helping to minimize fatigue while optimizing performance. 

Notable Mention

While this article provides a list of the fastest electric fat bikes on the market, it isn’t exhaustive. There are electric fat tire bikes in the market with optional drive power systems that can significantly enhance the electric bicycle’s speed, beyond pedal assist levels. However, they aren’t legal to ride on bike paths and many other public lands where regular bikes are allowed.

Find out how fast a 1000W e-bike can go!

One of the most impressive of these is the 2020 Titan, as discussed below.

2020 Titan 

The 2020 Titan is one of the fastest bikes in the fat tire e-bike market. The 1500W variant of this e-bike offers top speeds of up to 33 mph (53 km/h), while the 750W variant delivers up to 28 mph (45 km/h). 

Although these speeds are among the highest in the market and are worth including among the fastest electric bicycles, this bike is notable because it has an optional 2000W mid-drive power system, which can increase the highest speed to 36 mph (58 km/h).

The standard version will provide up to 28 mph (45 km/h) with pedal assist. However, for those willing to opt for the 2000W power system, you can enjoy the highest fat tire e-bike speed currently available. 

Key Takeaways

Based on this assessment, the “legal” fastest fat tire electric bikes in the market are the Biktrix Juggernaut Hub Duo and the Biktrix Juggernaut Ultra Duo 3 fat electric bikes. These electric fat bikes deliver a top speed of up to 35 miles per hour (56 km/h).

If you’re looking for the highest speed on the market at the lowest price point, I recommend the Juggernaut Hub Duo e-bike. However, if you’re willing to spend a few hundred dollars more, Juiced Bikes Hyperscorpion will provide the speed you need with additional performance-enhancement features. 

Further, you can get a smooth ride from other high-quality, fast electric bikes for a lower price, like the Ride1Up Cafe Cruiser or Aventure fat tire bike… just check the tables above!

Read more articles on fat tire electric bicycles:

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