2025 Surron Ultra Bee HP 21kW: The Ultimate Electric Off-Road Motorcycle

The all-new Surron Ultra Bee HP 2025 is here, redefining electric off-road performance. This premium electric dirt bike features a massive 21kW peak power motor that unleashes an astonishing 511Nm of torque, making it one of the most powerful and capable off-road motorcycles in its class. Engineered for thrill-seekers, this bike combines raw power with cutting-edge innovation to conquer any trail.

Unmatched Power & Class-Leading Performance

Experience the next level of electric bike performance with the Surron Ultra Bee. The 2025 model is equipped with a next-generation hairpin motor and an advanced MTPA/MTPV controller, which work together to deliver smarter, more efficient power delivery. Whether you are climbing steep hills or accelerating on flat terrain, the 21kW peak output ensures you have the muscle to dominate.

• Peak Power: 21kW (Turbo Mode) / 18kW (Sport Mode)
• Max Torque: 376.9 ft-lbs (on wheel) for incredible acceleration
• Top Speed: 59 mph (95 km/h) for exhilarating high-speed off-road riding
• Battery: High-capacity 74V 60Ah Lithium-ion battery with advanced fast charging capability

Extended Range & Intelligent Riding Technology

Ride farther with an impressive range of up to 140km (at cruising speed), making this long-range electric bike perfect for extended trail expeditions. The Ultra Bee HP also integrates intelligent rider assist systems like SRTC traction control and BERS (Brake Energy Regeneration System), giving you superior control and stability on loose or slippery surfaces. The new Turbo Button provides instant access to the full 21kW peak power, while the crawling function offers fine-tuned control for technical off-road sections.

Built Durable: Design & Advanced Suspension

Constructed with a lightweight yet incredibly strong forged aluminum frame, the Surron Ultra Bee HP is both robust and agile. The redesigned gold fork suspension system is 50% stronger than previous models, featuring upgraded damping and hydraulic buffers that provide 30% better impact resistance. This ensures a smooth, stable ride over rocks and roots.

• Available Colors: Sleek Carbon-Black, Desert-Brown
• Wheelbase: 54.3 inches for optimal off-road stability
• Ground Clearance: 12.4 inches
• Rider Weight Capacity: 220 lbs
• New 18″ Rear Wheel: Improves durability and traction on rough terrain

Why Choose the Surron Ultra Bee HP 2025?

This is more than just a high-performance e-bike; it’s a complete off-road solution. With a removable 60Ah battery for easy swapping, convenient under-seat charger storage, and multiple ride modes (Eco, Daily, Sport, Reverse, Turbo), it adapts perfectly to your riding style and environment. The durable carbon fiber belt drive and forged pulleys are built to last, offering 3x the wear resistance of standard systems.

Order your 2025 Surron Ultra Bee HP today at SurronBikeStore.com and enjoy free shipping!

 

2025 Ultra bee HP

Surron Ultra Bee HP 2025 Key Features:

• 74V – 60AH Lithium Battery
• Range of 140km (Cruising @40km/h)
• 21KW Motor with 511Nm of Torque
• Top Speed 95km/h
• New and Improved Fork
• Under seat charger storage

 

New Features & Improvements

• Turbo Button: Unleashes full 21kW peak power
• Crawling Function: Fine control for technical off-road terrain
• Upgraded Battery: 74V60Ah for extended range and punch
• Advanced MTPA/MTPV Controller: Smarter power delivery
• Hairpin Motor: Improved efficiency & rapid heat dissipation
• 0–59mph Top Speed: Lightweight but ferocious
• New Suspension System:
  • 50% stronger gold fork with uniform wall thickness
  • Upgraded damping and hydraulic buffers for 30% better impact resistance
• Primary Drive Overhaul:
  • Carbon fiber belt + forged pulleys
  • Tungsten carbide pulley surfaces with 3x wear resistance

Range & Charging

• Range: 70 miles (at a reduced speed)
• Charge Time: 20% to 80% in just 2.5 hours

Design & Aesthetic Enhancements

• Sleek new sand-gold body color or Carbon Black
• Gold-accented front fork and guard plate decals
• New custom 18″ rear wheel set
• Slight weight increase (up 8 lbs) for added durability and power delivery
• Available in Carbon Black or Desert Brown

Ride Modes
Eco / Daily / Sport / Reverse / Turbo
Plus 3-level adjustable crawling control

Specs

• Motor: PMSM w/ MTPA/MTPV Controller
• Max Power: 21kW (Turbo) / 18kW (Sports)
• Max Torque (on wheel): 376.9 ft-lbs
• Battery: 74V / 60Ah Lithium-ion
• Top Speed: 59mph
• Seat Height: 35.8 in
• Ground Clearance: 12.4 in
• Wheelbase: 54.3 in
• Frame: Forged aluminum alloy
• Front Tire: 80/100-19 Off-Road
• Rear Tire: 100/90-18 Off-Road
• Front Fork Travel: 9.4 in
• Rear Shock Travel: 3.3 in (Wheel Travel: 9.4 in)
• Throttle Curve: Three settings
• Rider Weight Capacity: 220 lbs
• Weight: 195 lbs (dry)

Smart Features

• SRTC + BERS assist systems

 

Instructions: Settings and ASR Setup

1. Power On and Enter Settings Mode

• With the kickstand down, power on the bike.
• Hold the Ready and ASR buttons (front-facing buttons on the right and left grips) for 3 seconds until the display shows a letter B and a number.

2. Navigating Settings

• Tap ASR to move to the next setting.
• Tap Ready to change the setting value.

3. Settings Overview

• BO B5: Brake regeneration (activates when battery is under 95% in Sport mode)
• EO E5: Engine coasting regeneration
• A1 A3: Anti-Slip traction control (ASR)
• PO P1: Pause throttle when brake is applied
• 8 C1: Crash cutoff (C1 disables motor if bike tilts too far)
• F1 F3: Throttle sensitivity in Sport mode
• TO T1: Testing mode (records diagnostics)
• U1 U3: Charging speed control for utility power

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How to Set Up ASR (Anti-Slip Traction Control)

1. Activating ASR

• To enable ASR for steep slopes or slippery conditions, press the ASR button three times in a row.
• The ASR light will turn green to indicate it’s active.

2. ASR Strength Levels

• The right-side instrument shows ASR strength:
  • One bar: Lightest assistance (still allows short wheelies)
  • Three bars: Maximum traction control

3. Adjusting ASR While Riding

• To toggle ASR on/off while riding: press the ASR button three times.
• To adjust strength while riding: hold ASR and then double-click the reverse (r & s) button.

These instructions help you get the most out of your Ultra Bee’s advanced electronic systems and traction control.

Every PEV purchase includes a standard charger in the box. We also have fast chargers available for purchase.