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Torp TM50 Speed Motor Surron Ultra Bee

by Torp
SKU TRP-TM50-S
0 ( 0   )
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Sold out
Original price $1,540.00 - Original price $1,540.00
Original price
$1,540.00
$1,540.00 - $1,540.00
Current price $1,540.00

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The TM50 Speed Motor is compatible with the stock Ultra Bee battery, but performance is significantly increased with a higher voltage setup. For optimal results, we recommend
80V nominal (22S) battery — 92.4V fully charged. Higher voltage allows the TM50 Speed Motor to fully utilize its high-RPM design and unlock maximum power potential.

Technical Specifications

Peak Power 55 kW
Continuous Power 24 kW
Max Phase Current 1200 A
Max Torque 89 Nm
Torque @ 500A 49 Nm
KV Rating 97 RPM/V
Max RPM 13,000 RPM
Motor Resistance 2 mΩ
Efficiency Up to 95%
Motor Type IPM
Cooling Air
Position Sensor Encoder
Encoder Resolution 1024 (4096 effective)
Temp Sensor PT1000
Max Magnet Temp 150°C
Protection Rating IP67*
Installation Mid-mount
Pole Pairs 5
Phase Cross-Section 42 mm²
Terminal Lug Size M6 (50 mm²)
Dimensions 170 × 198 mm
Weight 14.2 kg
Warranty 2 Years

TM50 Speed vs TM50 Pro

Both Torp motors are built for the Ultra Bee — but tuned for different riding styles.

TM50 Speed Motor

  • Optimized for high-RPM operation
  • Higher KV for greater top speed
  • Performs well even on 72V setups (80V recommended)
  • Ideal for road builds and speed-focused riders

TM50 Pro Motor

  • Optimized for off-road torque delivery
  • Stronger low-to-mid RPM efficiency
  • More torque per amp
  • Best paired with higher voltage battery systems for full potential

If you’re building an Ultra Bee focused on maximum speed and high-RPM performance, the TM50 Speed Motor is the right foundation. However, if you want strong off-road torque with stronger low-to-mid RPMs, the TM50 Pro Motor is the right choice.

Torp Ultra Bee Motors Comparison

  TM50 Pro TM50 Speed
Torque 102 Nm 89 Nm
Peak Power 58 kW 55 kW
RPM 11,000 13,000
Off-Road Best Good
Road Good Best
KV Rating 88 RPM/V 97 RPM/V
Weight 31.3 lbs (14.2 kg) 31.3 lbs (14.2 kg)
Acceleration 3-4 s to 100 km/h (60 mph)
3.2-4.2 s to 100 km/h (60 mph)