MG310_700
Bafang G310 Standard Wind (8.5 rpm/V) Geared Hub Motor Prelaced in 700c Alex DM18 Rim.
The Bafang G310 motor is a compact disk compatible 2.5kg rear hub with a nominal 250-350 watt power rating that works great for stealthy systems that do not require significant assist for steep hills or cargo. This motor includes an internal 6-pole speedeometer sensor so it can use a CA-DP device and not require an external speedo pickup. It has a spiral gears on the initial reduction of a double stage planetary gear and is exceptionally quiet for a geared motor. Uses a cassette freehub system rather than screw-on freewheel and features a side cable exit as well.  This is our standard hub motor winding (8.5 rpm/V) prelaced in a 700c" Alex DM18 rim with Sapim single butted spokes. 
 Uses 9-pin overmolded Higo Z910 waterproof connector for the motor phase and hall wires. Including 6-pole speedometer. For more details, see the G31X Geared Motor Info Page
| Actual Weight (kg) | 3.5 | 
|---|---|
| Country of Manufacture | China | 
| Motor Nominal Wheel Size | 700C (ISO 622) | 
| Motor Power Range (Watts) | 250-500 | 
| Motor KV (RPM / V) | 8.5 | 
| Phase Resistance (Ohm) | 0.124 | 
| Disk Brake Compatible | Yes | 
| Connector(s) | Z910 | 
| Thermistor Style | 10K NTC, B ~3450 +10K pullup w/Speedo | 
| Axle Length (O.L.D.) | 138 | 
| Axle Threads | M12 x 1.25mm | 
| Rim Brake Compatible | yes | 
| Spoke Holes | 36 Hole | 
| Motor Type | Geared | 
| Flange Spoke Diameter (mm) | 123 | 
| Magnetic Pole Pairs (Phaserunner) | 88 | 
| Speedo Poles (for CA) | 6 | 
| Hysteresis Losses (N-m) | 0.666 | 
| Eddie Losses (N-m / rad/sec) | 0.015 | 
| Motor Inductance (H) | 0.00021 | 
                                
                                                        Canadian