VTB 41 kW Ultra Bee Motor

Surron Ultra Bee

The VTB Beast motor is designed to maximize the power of your Surron Ultra Bee. Paired with a VTB V9600 controller, it transforms the Ultra Bee into a 41 kW powerhouse.

Direct Drop-in Replacement for Surron Ultra Bee

• Max Torque: 68 N·m
• Max Stable Rotor RPM: 9500 RPM
• Peak Power: 41 kW
• Max Efficiency: ≥95%
• Working Voltage: 48–100 V
• KV Value: 85 KV

Motor Temperature

• 130°C start limiting
• 150°C power cut

• Max Phase Current: 1100 A
• Number of Pole Pairs: 5
• Phase Wire Terminal: SC35-6
• Waterproof Rating: IP67
• Air Gap: Leading 0.5 mm rotor air gap empowers torque to 62 N·m
• Sensing Method: ABZ + PWM encoder, 1024 pulses with 240 Hz output frequency
• Temperature Sensor: NTC 10k thermistors
• Shaft: High-strength 40CrMoTi steel alloy
• Rotor: IPM (Internal Permanent Magnet) rotor for enhanced power density
• Bearings: Top-standard sealed bearings with excellent shock absorption and durability
• Lamination: High magnetic force stator laminations, reducing eddy-current loss
• Stator Winding: VPI (Vacuum Pressure Impregnation) insulated for protection and durability
• Sensor Terminal: Nylon M12 circular connector for V9600 controller and 8-pin square sensor terminals for higher waterproofing

Specifications

• Stator Size: 140 × 180 mm
• Weight: 11.8 kg
• Color: Iron Gray

Further Description

Encoder Connector

The VTB Beast motor features circular connectors using IMD (In-Mold Decoration) for superior integration with other VTB products, providing IP67 waterproofing. Square-shape connectors are also included for separate motor use, though they carry a slightly higher risk of water ingress due to partial PVC coverage.

Sensing Method

Two sensor types are commonly used: Hall sensors and encoders. Hall sensors offer wide compatibility but slower response under high-speed or traction-loss conditions. Encoders, used in VTB motors, provide premium speed feedback, throttle sensitivity, and precise control, ideal for riders performing wheelies or demanding high control accuracy.