Surron Ultra Bee Engine / Motor (2026 style)

WHAT THE “ENGINE” REALLY IS

👉 Unlike petrol bikes, the Ultra Bee uses:

🔋 Electric Powertrain:

• Brushless PMSM Motor (Permanent Magnet)
• FOC Controller (brain of the system)
• Battery (74V ~60Ah lithium)

👉 This system replaces:
❌ piston engine
❌ gearbox
❌ fuel system

2. MOTOR POWER (VERY IMPORTANT)

• Up to 21kW peak power (Turbo mode)
• Around 18kW continuous (Sport mode)
• Extremely high torque (~500Nm at wheel)

👉 What this means:

✔ Instant acceleration
✔ Strong hill climbing
✔ No delay like petrol engines

3. DRIVETRAIN (HOW POWER MOVES)

👉 Instead of gearbox, it uses:

⚙️ System:

• Motor → Belt drive → Chain → Rear wheel

✔ Smooth power delivery
✔ Less maintenance
✔ More efficiency

👉 The belt system is reinforced and lasts longer than normal chains

4. CONTROLLER (THE “BRAIN”)

👉 The controller manages:

• Power output
• Throttle response
• Riding modes

Modes include:

• Eco
• Daily
• Sport
• Turbo
• Reverse

👉 It uses FOC (Field-Oriented Control) for smooth power delivery

5. BATTERY SYSTEM

• 74V lithium battery
• Up to 60Ah capacity
• Fast charging (~2.5 hours)

👉 Gives:
✔ Long range
✔ High discharge power
✔ Stable performance

6. WHY THIS ENGINE IS SPECIAL

Compared to normal dirt bikes:

✔ Advantages

• Instant torque (no revving needed)
• Quiet operation
• Less maintenance
• Lightweight

Differences

• No engine sound
• No clutch / gears
• Battery-dependent

 7. REAL PERFORMANCE FEEL

👉 When you ride it:

• Twist throttle → instant power hit
• No lag
• Feels like “electric explosion” ⚡

SIMPLE SUMMARY

👉 Surron Ultra Bee engine =
✔ Electric motor + controller + battery
✔ Up to 21kW power
✔ High torque + lightweight
✔ Built for off-road dominance.