MG311 Standard Wind 700c
Bafang G311 Front Geared Hub Motor in 700c Alex DM18 Rim Standard Wind (8.4 rpm/V).
The Bafang G311 front 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 is laced in a 700c Alex DM18 rim and 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 helical gears on the initial reduction of a double stage planetary gear and is exceptionally quiet for a geared motor. This hub is wound with a moderate speed winding (8.4 rpm/V)
Uses 9-pin overmolded Higo Z910 waterproof connector for the motor phase, hall, and speedo wires. Has internal tabbed washers for anti-torque rotation with the dropouts and a round 10mm axle. Does not work with conventional torque arms.
For more details, see the G31X Geared Motor Info Page
Country of Manufacture | China |
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Actual Weight (kg) | 3.16 |
Motor Nominal Wheel Size | 700C (ISO 622) |
Motor Power Range (Watts) | 250-500 |
Motor KV (RPM / V) | 8.4 |
Phase Resistance (Ohm) | 0.124 |
Disk Brake Compatible | Yes |
Connector(s) | Z910 |
Axle Length (O.L.D.) | 100 |
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 |