Description
Specifications
55 Ah
84V
70 Miles
21KW
Product Information
SurRon Ultra Bee 2025 – Now Faster!
The next evolution in electric off-road performance is here. The 2025 Ultra Bee pushes boundaries with a massive power upgrade, redesigned suspension, and high-efficiency motor tech—all while retaining the nimble ride feel SurRon is known for.
Power Upgrade – Now 21kW Peak
Tap into insane acceleration with the all-new Turbo Mode, peaking at 21kW and maintaining 18kW continuous in Sport Mode. That means 0–31mph in just 2 seconds, or a blistering 1.1 seconds to 18.7mph off the line. The 2024 outgoing model peaked at just 12.5kw. While that was plenty, this is a huge and fully welcomed upgrade!
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)

CT20 EBIKE 



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