MG311 Standard Wind 700c

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Bafang G311 Front Geared Hub Motor in 700c Alex DM18 Rim Standard Wind (8.4 rpm/V)

Befang G311 Front Motor

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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

Actual Weight (kg) 3.16
Country of Manufacture China
Manufacturer Bafang
Motor Power Range (Watts) 250-500
Motor KV (RPM / V) 8.4
Phase Resistance (Ohm) 0.124
Disk Brake Compatible Yes
Axle Length (O.L.D.) 100
Spoke Holes 36 Hole
Nominal Wheel Size 700C (ISO 622)
Flange Spoke Diameter (mm) 123
Magnetic Pole Pairs 88
Hysteresis Losses (N-m) 0.666
Eddie Losses (N-m / rad/sec) 0.015

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