MG311 Fast Wind 20''

Availability: In stock


Quick Overview

Bafang G311 Front Geared Hub Motor in 20" Alex DM18 Rim. Fast Wind (10.5 rpm/V).

Befang G311 Front Motor

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Bafang G311 front hub with a nominal 250-350 watt power rating. Works great for stealthy systems that do not require significant assist for steep hills or cargo. This motor is laced in a 20" Alex DM18 rim and 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 fast 10.5 rpm/V winding constant suitable for the smaller wheel size.

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

Actual Weight (kg) 2.84
Country of Manufacture Canada
Manufacturer Bafang
Motor Power Range (Watts) 250-500
Motor KV (RPM / V) 10.5
Phase Resistance (Ohm) 0.098
Disk Brake Compatible Yes
Axle Length (O.L.D.) 100
Spoke Holes 36 Hole
Nominal Wheel Size 20" (ISO 406)
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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