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JupiterBike DEFIANT Fat Tire Folding Electric Bike

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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 26 mph. The Defiant will tear through sand, snow, mud, or any terrain that dares to stand in its way. The extra large battery delivers a 48v stream of power that will take it's rider up to 40 miles*


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.





✔ Folds down for travel
✔ Easy to Remove Battery

✔ Aluminum light frame
✔ 7-speed Shimano Drivetrain

✔ 750 Watt Hub Motor
✔ Integrated headlight
✔ Travel up to 40 miles on a charge


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

The Defiant's 4" x 20" 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 26 mph speeds with just a twist of the handle. Press the button under the left grip for loud electric horn.


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

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


Front and Rear Disc Brakes

Superior performance and smooth stopping power. The Defiant's dual 160mm stainless steel disc brakes provide even, reliable braking.



Dual Spring Saddle with Light

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




750 Watt High Torque Motor

Dominate any terrain and climb hills effortlessly with this ultra powerful 750w geared hub motor. A major boost to the enjoyment of your ride.



Front & Rear Fender Mudguards

These fenders make a tremendous difference when you are riding on roads that are wet from drizzle, recent rain, or snowmelt.



Rear Cargo Rack*

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

*optional accessory






Max Speed: 28 mph

Distance per charge: Up to 30 miles

Motor: 500 Watt Hub Motor

Battery: 48V, 7Ah Samsung Lithium-Ion

Full Charge Time: 5 hours

Brakes: Front and Rear Disc

Wheels: 26" Inflatable (40-60 psi)

Kickstand: Yes

Folded (L x W x H): 40" x 24" x 42"

Unfolded (L x W x H): 73" x 25" x 43"

Product Weight: 50 lbs

Weight Limit: 300 lbs

Wheel Base: 45" (front to rear axle)

Cross Bar Height (step over): 29.5" - 34"

Warranty: 1 Year Limited

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