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Surron Ultra Bee X Off-Road 2025

$4,499.00

The 2025 Surron Ultra Bee X Off-Road – The Mid-Size Electric Missile. Surron’s 4th generation power platform closes the gap between Light Bee and 250cc. With 21kW Turbo peak, 511Nm wheel torque, and just 88kg weight, it delivers super-bike acceleration with mountain-bike agility. Now with enhanced SRTC off-road traction control and TR rear suspension.

Motor & Controller: PMSM Mid-Motor with Hair-Pin Winding – 21kW Turbo / 18kW Sport – MTPA/MTPV FOC Sine Wave Controller – 3 Throttle Curve Settings
Battery: 74V 60Ah Removable Lithium-Ion – 4.44kWh Capacity – 2.5 Hours 20-80% Fast Charge with 1100W Charger – 3 Charging Levels U1 425W / U2 765W / U3 1100W
Performance: Top Speed 95 km/h (59 mph) – Max Torque 511 Nm – Acceleration 0-30 km/h 1.1s / 0-50 km/h 2.0s / 0-70 km/h 3.1s
Range: 115km at 50km/h – 140km at 40km/h WMTC – 20 miles aggressive singletrack in Sport mode
Riding Modes: 6 Modes: Eco / Daily / Sport / Reverse / Turbo / Crawl (3-level) + BERS Regenerative Braking + SRTC Traction Control System
Chassis: Forged 6061-T6 Aluminum Monocoque Frame – Carbon Fiber Primary Belt Drive with Forged Tungsten-Carbide Pulleys (60% longer belt life)
Suspension: Front KKE 37mm Closed Cartridge 235mm Travel – 7050-T6 Outer Tubes / 6061-T6 Dropouts / SKF Low-Friction Seals – Rear TR Adjustable Monoshock
Fitment: Off-Road Only – Not DOT Legal – 2025 Model – Colors: Carbon Black / Desert Brown / Gold Edition

Surron Ultra Bee X HP 2025 – The Next Level Of Electric Performance

Building on the success of the Light Bee, the 2025 Surron Ultra Bee X HP Off-Road elevates electric performance to a whole new level. At the heart is Surron’s 4th Generation Powertrain with revolutionary HairPin motor technology and MTPA/MTPV controller, delivering an insane 21kW peak power in Turbo Mode (18kW Sports) and 511 Nm wheel torque. This is the bike that closes the gap between lightweight play bikes and full-size dirt bikes.

Now available at Flash E-Bikes – www.flashe-bikes.com. Off-road use only – no ADR compliance.

Why The 2025 Ultra Bee X Dominates The Track & Trail?

4th Gen Power Platform – 21kW Turbo + SRTC Traction Control

Experience seamless power delivery with PMSM mid-drive motor featuring Surron’s advanced SRTC – Surron Off-Road Traction Control System. 6 Power Modes including brand-new Turbo Mode for maximum attack and Crawl Mode for technical sections, plus Eco, Daily, Sport, and Reverse. 3 Throttle Curve settings let you fine-tune response. The fully isolated electrical architecture ensures interference-free performance. 0-30 km/h in 1.1 seconds, 0-50 km/h in 2 seconds, 0-70 km/h in just 3.1 seconds.

74V 60Ah High-Performance Battery – 115km Range

Removable 74V 60Ah lithium-ion battery pack (4.44 kWh) gives up to 115 km range at 50 km/h or 85 miles in mixed riding. Fast charging: 2.5 hours from 20-80% with 1100W U3 charger (U1 425W / U2 765W also supported). SERS – Surron Energy Regenerative System recovers energy under braking. Battery is portable and swappable for non-stop riding.

Upgraded Chassis & Suspension – 88.5kg Super Lightweight

Qiulong’s philosophy of “balance is key” – lightweight aluminum alloy integral forging frame with 50:50 front/rear weight distribution. Super lightweight at just 88.5 kg. New optimized gold inverted front fork with redesigned internals and upgraded TR rear monoshock linkage for stability on jumps and rough terrain. Race-inspired braking system with 240mm hydraulic disc brakes front and rear for unbeatable stopping power.

Built For Any Terrain

18″/19″ off-road wheels and tires (18 rear, 19 front) for true dirt bike geometry. Seat height 910mm. Carbon-fiber primary belt with forged tungsten-carbide pulleys for long-term reliability and reduced wear. GPS terminal with App connection for tracking and diagnostics. LED lights, LCD dash with live battery and torque data.

Technical Specifications

Feature	Details
Model	2025 Surron Ultra Bee X HP Off-Road (Replaces T and R Versions)
Motor Type	4th Gen PMSM Mid-Drive with HairPin Technology + MTPA/MTPV Controller
Peak Power	21kW (Turbo Mode) / 18kW (Sports Mode) / 12.5kW Continuous
Max Wheel Torque	511 Nm / 440 Nm Motor Torque
Top Speed	95 km/h / 59 mph (Off-Road)
Acceleration	0-30 km/h: 1.1s / 0-50 km/h: 2.0s / 0-70 km/h: 3.1s / 0-31 mph: 2.0s
Battery	74V 60Ah Lithium-Ion Removable Pack, 4.44 kWh Capacity
Range	115 km @ 50 km/h / 85 Miles Mixed / 50 Miles Aggressive
Charging Time	2.5 Hours (20-80% with U3 1100W Charger) / U1 425W / U2 765W / U3 1100W Levels
Riding Modes	6 Modes: Eco, Daily, Sports, Turbo, Crawl, Reverse + 3 Throttle Curves
Traction Control	SRTC – Surron Off-Road Traction Control System + SERS Regenerative Braking
Primary Drive	Upgraded Carbon Fiber Belt with Forged Tungsten-Carbide Pulleys
Front Fork	New Optimized Gold Inverted Fork, Custom Tuned for Ultra Bee
Rear Suspension	Upgraded TR Mono Shock with Linkage, Custom Valving
Brakes	Hydraulic Disc Brakes Front & Rear, Race-Inspired System
Wheels	18″/19″ Off-Road Wheels (19″ Front / 18″ Rear) – Off-Road Tires
Weight	88.5 kg / 195 lbs (Super Lightweight)
Seat Height	910 mm / 35.8 inches
Frame	Aluminum Alloy Integral Forging Frame, 50:50 Weight Distribution
Display	LCD Dash with Speedo, Battery Gauge, Torque Distribution, Mode Indicator
Compliance	Off-Road Use Only – Not ADR / Road Legal
Warranty	18 Months / 20,000 Miles – 5 Year Extended Available
Price	$4,499 – Best Price at Flash E-Bikes

Why Buy Surron Ultra Bee X From Flash E-Bikes?

At Flash E-Bikes we are authorized Surron dealers. Your 2025 Ultra Bee X HP comes with factory warranty, original 74V charger, tool kit, and expert support. We ship fast across the USA, fully tested and ready to rip. This is the most powerful mid-size electric dirt bike ever made – reserve yours today.

FAQs

Q: What is the top speed of the 2025 Surron Ultra Bee X?
A: Top speed is 59 mph / 95 km/h in Turbo mode off-road.

Q: How long does the battery last on Ultra Bee X?
A: Up to 115 km at 50 km/h, or 85 miles mixed riding, 40-50 miles aggressive trail riding. Removable battery charges in 2.5 hours.

Q: What is the difference between Ultra Bee X and Light Bee X?
A: Ultra Bee X is bigger, more powerful (21kW vs 8kW), larger 74V 60Ah battery vs 60V 40Ah, full-size 18/19 wheels, and more advanced traction control and suspension.