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JupiterBike Defiant PRO Electric Bike
Upgraded Power, Comfort, and Performance for Any Terrain
Watch the Defiant PRO in Action
The JupiterBike Defiant PRO Electric Bike is built for riders who demand more power, enhanced comfort, and premium components. Featuring a robust 750W motor (1130W peak) paired with a 48V system, the Defiant PRO delivers fast acceleration and consistent high-speed performance, making it ideal for commuting, off-road riding, and everything in between.
Designed to handle rough terrain with ease, the Defiant PRO is equipped with a front suspension system that absorbs shocks and bumps, providing a smoother and more controlled ride on uneven surfaces.
Upgraded components set the PRO apart, including hydraulic brakes for precise stopping power, an improved Shimano Altus drivetrain with trigger shifting, and full city fenders for all-weather riding. The included MIK-compatible rear rack adds versatility for carrying cargo, making it perfect for both daily commutes and weekend adventures.
Key Features
- 750W Motor (1130W Peak) – Strong acceleration and hill-climbing power
- 48V Battery System – Reliable performance and extended riding capability
- Front Suspension Fork – Smooth ride on rough terrain
- Hydraulic Brakes – Enhanced stopping power and control
- Shimano Altus Drivetrain – Precise and responsive gear shifting
- 20" x 4" Fat Tires – Stability and traction on all surfaces
- Full City Fenders – Protection from mud and water
- MIK Compatible Rear Rack – Ready for cargo and accessories
Performance & Upgrades
750W Power
The 48V motor system with 1130W peak output provides strong torque and acceleration, allowing riders to conquer hills and maintain speed with ease.
Front Shock Suspension
The integrated front suspension absorbs impact from rough terrain, delivering a smoother and more stable ride.
Upgraded Components
Enjoy premium upgrades including hydraulic braking, alloy rims, improved drivetrain, and added cargo capability with the MIK-compatible rack.
Defiant Electric Bike Comparison
| Feature | Defiant | Defiant PRO | Defiant ST |
|---|---|---|---|
| Price | $1699 | $1899 | $1999 |
| Wheel | 20" x 4" Spokes | 20" x 4" Spokes | 20" x 4" Spokes |
| Max Speed | 20 mph (adjustable to 28 mph) | 20 mph (adjustable to 28 mph) | 20 mph (adjustable to 28 mph) |
| Max Range | 40 miles | 40 miles | 50 miles |
| Battery | 48V 10.4Ah | 48V 10.4Ah | 48V 13.2Ah |
| Suspension | None | Front | Front & Rear |
| Drivetrain | 7 Speed | 7 Speed | 7 Speed |
| Motor | 1130W Peak / 750W Sustained | 1130W Peak / 750W Sustained | 1130W Peak / 750W Sustained |
| Throttle | Twist | Thumb | Thumb |
| Derailleur | Shimano Tourney | Shimano Altus w/ Paddle Shifter | Shimano Altus w/ Paddle Shifter |
| Brakes | Mechanical | Hydraulic (with brake light) | Hydraulic |
| Fender | Sport | Full City Style | Full City Style |
| Grips | Rubber | Leather | Leather |
| Rear Rack | Optional | MIK Compatible Included | MIK Compatible Included |
