Torp TM40 Motor Upgrade: Sur-Ron Light Bee
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Torp TM40 Motor is the most powerful motor upgrade ever made for the Sur-Ron Light Bee electric motorbike. Equipped with 65mm-wide magnets, the TM40 Motor maximizes the overall power output of the Sur-Ron Light Bee. This powerful, yet lightweight motor delivers peak performance that will push your Sur-Ron Light Bee to the absolute limit.
Torp TM40 Motor Features
- Powerful + Lightweight Motor: up to 50kW Peak Power, only 26.5lbs
- Engineered for Max Power: thicker wires, 65mm-wide magnets, lowest electrical resistance on the market
- Made with Superior materials for durability and longevity
- Encoder (default) or Hall Position Sensors: provides a wide range of compatibility with superb precision when paired with Torp Controllers (encoder), even at high speeds
- Mounting options available for other electric motorbikes
TM40 vs TM40 Pro
TM40 – Off-Road Beast
Built for endurance and climbing power, the TM40 Motor is perfect for tackling long, demanding trails and steep terrain. With 93 Nm of instant torque, the TM40 can handle any obstacle. Additionally, the TM40 can be paired with a smaller sprocket to boost your top-end speed.
TM40 PRO – High-Speed Racer
Built for speed, the TM40 Pro Motor packs 50kW to push you ahead of your competition. With a 15% higher top speed than the TM40, the TM40 Pro will get you to the finish line first.
Torp TM40 Motor Specs
| Torp TM40 Motor | Torp TM40 Pro Motor | |
| Peak Power: | 42 kW | 50 kW |
| Continuous Power: | 17 kW | 19 kW |
| Max Phase Current: | 1000 A | 1100 A |
| Max Torque: | 93 Nm | 86 Nm |
| Torque 500 A: | 52 Nm | 48 Nm |
| KV Rating: | 84 RPM/V | 97 RPM/V |
| Max RPM: | 10,000 RPM | 11,000 RPM |
| Motor Resistance: | 2.7 mΩ | 2.4 mΩ |
| Phase Cross-Section: | 35 mm² | 35 mm² |
| Magnet Length: | 65 mm | 65 mm |
| Weight: | 26.5 lbs (12 kg) | 26.5 lbs (12 kg) |
| Motor Size: | 4.53"×6.5" (115×165 mm) | 4.53"×6.5" (115×165 mm) |
- Motor type: IPM
- Position Sensor: Encoder (default) / Hall (optional)
- Encoder points: 1024 (4096)
- Max magnet temp.: 150°C
- Temp. sensor: PT1000
- Efficiency: up to 95%
- Protection class: IP67*
- Terminal lug size: M6 35 mm²
- Installation: Mid
- Number of pole pairs: 5
- Cooling method: Air
- Warranty: 2 years
*Torp products have an IP67 rating achieved by testing in distilled water under laboratory conditions. This rating does not imply suitability for continuous underwater use, as it may result in damage. Additionally, the Torp TM40 Motor connectors are not waterproof and you must keep them dry to ensure proper functionality and safety.