Canadian
Rear Max45 All-Axle, Slw HG
Torque Sensing Rear Max45 All-Axle Hub Motor for Fatbikes. Slow 5 turn (~7.2 rpm/V) Winding. Shimano HG Freehub.
USD$895.00
Availability:
Back-Ordered
ETA:
Jul 19 2025
SKU
M-AA4505R_THG
Rear Max45 All-Axle Hub Motor with built-in torque sensor, black anodized side plates, and Shimano HG compatible freehub. Works with both quick release and thru axle fatbike dropouts (170-197mm). Slow 7.2 rpm/V Winding. Includes 10K NTC thermistor for motor temperature sensing and thermal rollback with V3 Cycle Analyst.
See Grin All Axle Hub Info Page for more details
| Actual Weight (kg) | 6.1 |
|---|---|
| Manufacturer | Grin |
| Country of Manufacture | Canada |
| Motor MFG | Grin Tech |
| Motor Power Range (Watts) | 1000-2000 |
| Motor KV (RPM / V) | 7.2 |
| Phase Resistance (Ohm) | 0.100 |
| Disk Brake Compatible | Yes |
| Connector(s) | L1019 |
| Thermistor Style | 10K NTC, Beta ~3450 |
| Axle Length (O.L.D.) | 170 |
| Spoke Holes | 32 Hole |
| Motor Type | Direct Drive |
| Flange Spoke Diameter (mm) | 214 |
| Magnetic Pole Pairs (Phaserunner) | 23 |
| Speedo Poles (for CA) | 23 |
| Hysteresis Losses (N-m) | 1 |
| Eddie Losses (N-m / rad/sec) | 0.007 |
