Ventus
Ventus Ryuga Motor | RGA-52KW & RGA-81KW
Ventus Ryuga Motor | RGA-52KW & RGA-81KW
Race-level hairpin motor performance
The Ventus Ryuga Motor is built for riders pushing beyond conventional emoto performance. Available in 52kW and 81kW configurations, the Ryuga combines advanced hairpin motor technology, high-speed capability and precise encoder control for serious performance builds.
Extreme Power
Up to 52.5kW peak power for compatible lightweight emoto platforms and up to 81kW for the Surron Ultra Bee.
Off-Road Ready
IP67 waterproof protection, high-temperature winding insulation and heavy-duty phase wiring for demanding riding conditions.
Precision Control
ABZP encoder technology provides accurate rotor-position feedback for smooth, controlled power delivery.
High Efficiency
Advanced hairpin motor construction supports strong thermal performance and up to 95% maximum efficiency.
Compatibility & Performance
Choose the RGA-52KW for high-performance builds based on the Surron Light Bee, Ventus One Plus, Rerode R1, E Ride Pro and 79Bike platforms. The larger RGA-81KW is purpose-built for advanced Surron Ultra Bee performance builds.
| Specification | RGA-52KW | RGA-81KW |
|---|---|---|
| Compatible Bikes | Surron Light Bee Ventus One Plus Rerode R1 E Ride Pro 79Bike |
Surron Ultra Bee |
| Peak Power at 72V | 38.4kW | 60.3kW |
| Peak Power at 96V | 52.5kW | 81kW |
| Peak Torque | 91Nm at 850A 68Nm at 560A |
114Nm at 1400A 73Nm at 850A |
| Motor Weight | 10.4kg | 12.7kg |
| KV Rating | 83.3KV | 118KV |
| Maximum Rotor Speed | 14,000 RPM | 14,000 RPM |
| Maximum Efficiency | 95% | 95% |
| Phase Wire Size | 25mm² | 35mm² |
| Motor Dimensions | Ø173 × 154.9mm | Ø173 × 180.8mm |
| Ventus Tested Speed at 72V | 135km/h | 170km/h |
| Ventus Tested Speed at 96V | 165km/h | 195km/h |
| Waterproof Rating | IP67 | IP67 |
Engineered for Serious Performance
Unlike conventionally wound motors, the Ryuga uses advanced hairpin construction to achieve high winding density, strong thermal performance and efficient high-current operation.
Precision ABZP Encoder: Accurate rotor-position feedback supports smooth response and controlled power delivery with compatible high-output controllers.
High-Speed Rotor: Both Ryuga motors are rated for maximum rotor speeds of up to 14,000 RPM.
Hairpin Motor Construction: High-density hairpin windings support extreme power, improved thermal performance and efficient high-current operation.
Heavy-Duty Phase Wiring: The RGA-52KW uses 25mm² phase wiring, while the RGA-81KW uses larger 35mm² phase wiring for its higher-current capability.
Technical Specifications
| Specification | Value |
|---|---|
| Motor Type | Hairpin Motor |
| Cooling | Natural Air Cooling |
| Position Sensor | ABZP Encoder |
| Temperature Sensor | NTC 10K B3905 |
| Pole Pairs | 4 |
| Maximum Efficiency | 95% |
| Winding Insulation Temperature Rating | 250°C |
| Maximum Rotor Speed | 14,000 RPM |
| Waterproof Rating | IP67 |
Not sure which Ryuga Motor is right for your bike?
Contact the Shock Moto team for expert advice on motor compatibility, controllers, batteries and complete performance builds.
For maximum performance, we recommend pairing the Ventus Ryuga Motor with the Ventus AETOS V9600 GEN2 Controller .
Need help building the ultimate eMoto?
Our Wellington workshop can supply and install complete performance packages tailored to your bike, riding style and power goals.
- Performance motor and controller installation
- Battery and voltage upgrade advice
- Controller setup and tuning
- Drivetrain and gearing recommendations
- Complete customised performance builds
Why Buy From Shock Moto?
- Official New Zealand Ventus dealer
- Genuine Ventus products
- New Zealand-held stock
- Local technical and warranty support
- Expert performance upgrade advice
- Fast nationwide shipping
- Workshop installation available
Shipping & Delivery
Shipping & Delivery
Click & Collect (Free)
Collect your order from our Wellington store once it is ready. We’ll contact you to arrange a collection time.
Nationwide Delivery
We ship parts and accessories throughout New Zealand using an appropriate courier or freight service based on the item’s size, weight and delivery location.
Shipping is calculated at checkout where available. Heavy, oversized or specialist products may require a custom freight quote.
Delivery Time
Parts and accessories are usually delivered within 1 - 5 business days after dispatch. Rural addresses may take longer.
What to Expect
- Orders securely packaged for transport
- Tracking details provided
- Signature may be required
- Large items may have different delivery requirements
If you’re unsure about delivery for a particular product, contact us before ordering.
