MG311 Very Fast Wind, Unlaced

Bafang G311 Front Geared Hub Motor with 9-pin Waterproof Higo Z910 Motor Plug. Very Fast Wind (11.9 rpm/V) Well Suited for 16" Wheels.

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The Bafang G311 motor is a compact disk compatible 2.3kg front 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 speedometer 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.

This hub is wound with a very high 11.9 rpm/V well suited for 16" and 18" wheels, but can be used in fast 20" setups as well.

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

Please use a power limit of 700W maximum with these products

More Information
Actual Weight (kg) 2.26
ETA Oct. 14, 2020
Manufacturer Bafang
Motor Power Range (Watts) 250-500
Motor KV (RPM / V) 11.9
Phase Resistance (Ohm) 0.075
Disk Brake Compatible Yes
Connector(s) Z910
Axle Length (O.L.D.) 100
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) 0.000098
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