Torp TM40 Pro Motor Upgrade for Sur-Ron Light Bee
If you’re building a fast Sur-Ron Light Bee for hard launches, high top speed runs, or a serious powertrain refresh, the Torp TM40 Pro is a purpose-built mid-drive IPM traction motor designed to take big current and deliver efficient power where it matters. With up to 50 kW peak power, an integrated 1024 (4096) point encoder, and up to 95% efficiency, it’s a premium option for riders who want more than a basic motor swap.
Designed and engineered in the EU and sealed to IP67, the TM40 Pro is built for real-world riding—dust, water, and aggressive use—while maintaining the control precision you need for modern FOC tuning.
Why TM40 Pro (and not a generic Sur-Ron motor)?
- Built for maximum power with thick windings, a wide magnet package, and ultra-low 2.4 mΩ motor resistance for high-current performance
- High peak output rated at 50 kW—ideal for speed-focused builds on the Light Bee platform
- Strong usable torque up to 86 Nm (and 48 Nm @ 500 A) for hard acceleration
- Encoder or Hall support for broader controller compatibility and clean low-speed control
- IP67 protection to keep mud, dust, and water out of your investment
Controller Compatibility
The TM40 Pro is fully compatible with the Torp TC1000 motor controller (inverter). It also supports encoder or Hall sensor input, which can help when integrating with other aftermarket controller setups (depending on your specific controller and harness).
TM40 Pro vs TM40: Which one should you choose?
The TM40 series includes two versions: TM40 Pro and TM40. Both are built for rapid acceleration and drag-style riding, but the TM40 Pro is tuned toward higher top speed potential, while the TM40 is generally considered more off-road oriented.
Technical Specifications
| Motor Type | IPM mid-drive traction motor |
| Max (Peak) Power | 50 kW |
| Continuous Power | 19 kW |
| Max Phase Current | 1100 A |
| Max Torque | 86 Nm |
| Torque @ 500 A | 48 Nm |
| Motor Resistance | 2.4 mΩ |
| Encoder | 1024 (4096) |
| Efficiency | Up to 95% |
| Ingress Protection | IP67 |
| Primary Platform | Sur-Ron Light Bee |
| Designed/Engineered | EU |
What’s included
Torp TM40 Pro motor (mid-drive) for Sur-Ron Light Bee. Controller, battery, and installation parts are not included unless stated otherwise.
