Ryuga 81kW
Engineered exclusively for the Surron Ultra Bee, the Ventus RGA81 Hairpin Motor is a true leap forward in EMoto power and efficiency. Its advanced hairpin-wound architecture delivers dramatically higher torque density, cooler operation, and faster response than traditional PMSM motors.
With peak output of 60.3 kW at 72V and a staggering 81 kW at 96V, the RGA81 pushes performance far beyond stock capabilities. A 14,000 rpm max speed and 95% efficiency rating ensure explosive acceleration, exceptional top-end stability, and unmatched power delivery for riders demanding the highest level of EMoto performance.
Ryuga 52kW
Engineered for the Light Bee, Ventus, Rerode, and other compact EMoto platforms, the Ventus RGA52 Hairpin Motor also uses a hairpin-wound stator design.
With peak output of 38.4 kW at 72V and up to 52.5 kW at 96V, the RGA52 unlocks a dramatic performance increase over stock motors in this class. A 14,000 rpm maximum speed and 95% efficiency rating ensure rapid acceleration, higher sustained speeds, and a smoother, more controlled riding experience for lightweight EMoto builds.
VENTUS RYUGA 52KW HAIRPIN MOTOR
Designed for riders who demand more power, more torque, and ultimate control. The Ventus Ryuga 52kW Hairpin Motor delivers extreme performance and efficiency built for next-generation electric motorcycles.
Technical Specifications
Performance Highlights
81kW Ryuga Motor
High-Quality Alloy 20CrMo Spline Shaft
Exceptional Load Bearing Capacity
4-Layer Hairpin Windings, High-Permeability Silicon Steel
Ultra-High Efficiency
0.35mm Air Gap Design, 42UH High-Grade Magnet
Outstanding Power
Committed to the Best Performance
81kW Performance
Top-level sealed bearings deliver the highest RPM
14000RPM
Motor Performance Curve
Efficiency Map
Efficiency contour map by voltage and motor configuration
| Product Model | BST28 | BST48 | RGA52 | RGA81 |
|---|---|---|---|---|
| Compatible Bikes | Light Bee, V1+, Rerode R1, Talaria X3, E-Ride Pro SS 2.0 / 3.0, E-Ride Pro SR, 79 Bike | Ultra Bee | Light Bee, V1+, Rerode R1, E-Ride Pro SS, 79 Bike | Ultra Bee |
| Motor Type | Round Wire | Round Wire | Hairpin | Hairpin |
| KV Value | 77.7 | 91.6 | 83.3 | 118 |
| Peak Power | 28kW @72V / 33kW @96V | 37.8kW @72V / 48kW @96V | 38.4kW @72V / 52.5kW @96V | 60.3kW @72V / 81kW @96V |
| Peak Torque | 67Nm @800A / 46Nm @560A | 85Nm @1250A / 45Nm @560A | 91Nm @850A / 68Nm @560A | 114Nm @1400A / 73Nm @850A |
| Max RPM | 9000 RPM | 10000 RPM | 14000 RPM | 14000 RPM |
| Weight | 10.8kg | 13.2kg | 10.4kg | 12.7kg |
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