Jupiter Bike

JupiterBike DEFIANT



All Terrain Electric Bike

Take on anything with the new fat tire Defiant. This bike is designed to tackle snow, mud, sand, or anything else that stands in your way. Don't just ride a trail, dominate it.


Speed Demon

The extra powerful 750w motor with 5 speed levels reaches speeds up to 25 mph. The Defiant will tear through sand, snow, mud, or any terrain that dares to stand in it's way. The extra large battery delivers a 48v stream of power that will take it's rider 40-60 miles*

Defiant Ebike Battery and Motor
Defiant Ebike Battery and Motor 

Defiant Ebike Folded

Foldable and Portable

The Defiant folds down in 3 easy steps. Perfect for storage in tight spaces in your boat, RV, or living spaces. Take your Defiant with you on your next adventure.

Defiant Key Features

High end materials and attention to detail makes the Defiant a step above the rest for appearance, reliability, and comfort. On the trail or on the road, the Defiant handles it all beautifully.

All-Terrain Fat Tire Concealed Removable Battery Twist Throttle Grip 

All-Terrain Fat Tire

The Defiant's 4" x 20" Kenda Krusade all-terrain fat tire powers through snow, sand, mud, or whatever your trail throws at you. Sturdy knobs on wheels are perfect for both on and off-road riding.

Concealed Removable Battery

Charge things up when you're on the go. The Defiant features a removable battery hidden in the center frame that locks with a key. Keep it safely stored, or take it out and recharge, worry-free.

Twist Throttle Grip

Get power on-demand with the variable speed twist throttle grip. Achieve speeds up to 25mph speeds with just a twist of the handle. Press the button under the left grip for loud electric horn.

Bright 5 Speed Display 4 Bulb LED Headlight 7 Speed Shimano Derailleur

Bright 5 Speed Display

Easy to read even in full daylight, the Defiant's LCD display shows you your speed, distance traveled, pedal assist level, and battery life all in a clean design. Choose between 5 levels of Pedal Assist.

4 Bulb LED Headlight

Bright adjustable front headlight for low light conditions. Powered from the Defiants's main Lithium Ion battery, improves visibility & safety.

7 Speed Shimano Derailleur

The Defiant features the 7 Speed Shimano Tourney Derailleur for manually pedaling your bike. Use the 7 Speed Thumb Shift Lever to rapidly shift between the gears on the rear cassette.

Quick Release Front Wheel Rear Cargo Rack Dual Spring Saddle with Light

Quick Release Front Wheel

Quickly detach the front wheel for quick storage and transportation options.

Rear Cargo Rack*

Take your cargo with you with the Defiant Rear Cargo Rack. Built tough from alluminum alloy and mounted directly to the Defiant frame. A must have for any commuter. *optional accessory

Dual Spring Saddle with Light

Dual spring suspension, mesh top, middle opening for breatability, and a bright red LED taillight with 3 modes. The Defiant comes stock with the amazing JupiterBike Upgrade Seat.


  • Folds down for travel
  • Easy to Remove Battery
  • Aluminum light frame
  • 7-speed Shimano Drivetrain
  • 750 Watt Hub Motor
  • Integrated headlight
  • Travel up to 60 miles on a charge 


Max Speed: 25 mph
Range: 40-60 miles*
750 Watt Hub Motor
Battery: 48V, 10.4Ah Li-Ion
Front and Rear Disc
Wheels: 20" x 4" Fat Tire
Folded (L x W x H): 38" x 22" x 28"
Unfolded (L x W x H): 65" x 22.5" x 48"
Product Weight: 55 lbs
Weight Limit: 300 lbs




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