Ultra Bee
The 2025 Ultra Bee C brings a perfect balance of power, control, and versatility to the trail. Its lightweight forged-aluminum frame pairs with a responsive mid-drive motor tuned for smooth, controllable torque and confident acceleration across changing terrain. Multiple ride modes and refined throttle mapping let riders adapt instantly, whether navigating tight singletrack or opening up on wider sections.
With enhanced suspension, upgraded wheel components, and a reliable braking system, the Ultra Bee C delivers agile handling, stable control, and a more refined off-road experience. Every ride feels sharp, capable, and exhilarating—no matter your skill level.
Throttle
Power
Battery
Wheel Set
Suspension
Braking
Performance redefined
Balance Is Perfection
The Ultra Bee follows Sur-Ron’s core design philosophy that true performance comes from perfect balance. Its forged aluminum-alloy frame is tailored to the bike’s dedicated power system, achieving a precise 50:50 weight distribution and a remarkably light 187 lb overall weight—easy to lift by hand and effortless to handle on the trail. With a refined rider interface and adaptable riding characteristics, the Ultra Bee lets every rider find their ideal blend of daily comfort and off-road capability, creating a seamless connection between machine and rider.
High-Performance Motor
& FOC Controller
The Ultra Bee C features Sur-Ron’s advanced mid-drive motor paired with an intelligent FOC sine-wave controller, working together to deliver smooth, controllable torque and confident acceleration across a wide range of terrain. Tuned through extensive real-world testing, the system provides precise power modulation and improved traction management in all ride modes.
This optimized power platform enhances throttle feel, efficiency, and overall ride stability—allowing the Ultra Bee C to adapt effortlessly from daily trail cruising to more demanding off-road challenges. The result is a balanced, capable, and intuitive riding experience from the very first ride.
New Power System Combination
The Ultra Bee C’s isolated electrical architecture ensures stable, interference-free performance, pairing a 12.5 kW peak motor with 324.5 ft-lbs of wheel torque and a 74V 55Ah battery pack. This balanced setup delivers quick response, precise control, and confident handling across varied terrain.
Self-Developed INTERSECT TR Suspension System
Sur-Ron’s INTERSECT TR multi-link suspension delivers smooth, controlled performance across rough terrain, offering excellent traction and balanced support. Tuned specifically for the Ultra Bee C, it provides precise handling, strong stability, and greater confidence during both technical maneuvers and fast trail riding.
74V 55Ah High-Performance Li-ion Battery Pack
The Ultra Bee C’s 4070Wh battery features a redesigned structure that delivers higher power density, improved thermal stability, and a lifespan of up to 1500 charge cycles. Weighing just 45.19 lbs, it achieves an industry-leading 200 Wh/kg energy density for reliable, sustained performance on every ride.
SRTC Off-Road Traction Control
The Ultra Bee C’s next-generation SRTC traction control system is designed specifically for off-road riding. With three adjustable TC levels, riders can fine-tune stability and wheel slip to match terrain and skill level—maintaining control without sacrificing agility. From loose surfaces to technical turns, the system helps you stay confident while unlocking effortless, controlled slides.
Customized Fully Adjustable Suspension System
With 9.4 inches of suspension travel, the Ultra Bee C delivers excellent manoeuvrability and comfort across varied off-road terrain. Its soft steering block design—unlike the hard blocks found on conventional motorcycles—provides added protection and cushioning for both the suspension and wheel systems during impacts or tip-overs.
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