Torp TM50 Speed (Ultra Bee)
The Torp TM50 Speed is a high-RPM air-cooled IPM PMSM inrunner mid-drive motor for the Sur-Ron Ultra Bee, built for top speed with a 97 RPM/V wind, up to 13,000 RPM, 55kW peak output and 89 N·m of torque from a very low 2 mΩ winding resistance. Pairs with Torp's TC-series controllers for aftermarket Ultra Bee builds.
In brief: 24000W mid-drive motor.
Specs verified Oct 25, 2026
Where to Find
Prices tracked across 2 sellersPrice History
Price History
Price changes tracked by the crawler
Current best price $1,540.00. Over the past 90 days: low $1,540.00, high $1,540.00, average $1,540.00 — about average.
- Darwin EV
- Lithium Powersports
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Specifications
Motor Design
- Design
- Inrunner PMSM
- Stator Height
- 80mm
- Pole Pairs
- 5
- Cooling
- Air
Performance
- Wattage
- 24000W
- Peak Wattage
- 55000W
- KV Rating
- 97
- Rated RPM
- 13000
- Max Torque
- 89.00Nm
Electrical
- Max Phase Amps
- 1200A
Features
- PAS Sensor Type
- None
- Temp Sensor
- PT1000
- Has Encoder
- Yes
Physical
- Weight
- 14.2 kg
- Dimensions (L×W×H)
- 198mm × 170mm × 170mm
- IP Rating
- IP67
