Canadian
M4040R_TA
Crystalyte H4040 UFO Rear Motor with 148 x 12 Boost Size Thru Axle Standard
Note: New torque arm design
SKU
M-M4040R_TA
Crystalyte H4040 UFO Rear Motor for 148x12 Boost Size Thru Axle Bike Frames
- 40mm wide stator and magnets for extra power
- Full 18mm of space from the disk boss to the side cover, allowing for compatibility with majority of disk calipers
- Cable routing terminates with waterproof L1019 plug with built in themistor tor temperature sensing
- Uses threaded freewheel instead of cassette freehub. 8 and 9 speed freewheels require additional axle spacer
- Integrated torque arm - use Thru Axle Frame Clamp if you do not want to fabricate your own frame holder
| Country of Manufacture | China |
|---|---|
| Actual Weight (kg) | 7.46 |
| Motor Power Range (Watts) | 1000-2000 |
| Motor KV (RPM / V) | 9.5 |
| Phase Resistance (Ohm) | 0.123 |
| Disk Brake Compatible | Yes |
| Connector(s) | L1019 |
| Thermistor Style | 10K NTC, B~3900 |
| Axle Length (O.L.D.) | 148 |
| Spoke Holes | 36 Hole |
| Motor Type | Direct Drive |
| Flange Spoke Diameter (mm) | 232 |
| Magnetic Pole Pairs (Phaserunner) | 23 |
| Speedo Poles (for CA) | 23 |
| Hysteresis Losses (N-m) | 0.77 |
| Eddie Losses (N-m / rad/sec) | 0.0185 |
| Motor Inductance (H) | 0.0005 |
