SX2 Rear Helical Geared Hub Motor, Fast Wind

Rear Casette Hub Motor with Helical Gears, Fast (9.8 rpm/V) Winding. Includes 9 Pin Z910 Cable with Combined Speed + Thermistor Signal.

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The Shengyi DGWX2 rear motor is a mid-sized, cassette freehub compatible 3.2kg hub with a nominal 250-500 watt power rating that works great for stealthy systems that do not require significant assist for steep hills or cargo. This motor is a bit more powerful and robust than the Bafang G310 hub and also uses silent helical gears.

This is a fast speed (6T, 9.8 rpm/V) winding that is typically used with 16" and 20" wheels. This Grin model was customized to use a combined speed and thermistor signal system allowing both speed sensing and thermal rollback from one wire of the Z910 plug. This feature is compatible with 2020 model Baserunner_Z9 controllers using a CA3-WP display.

For more information, see our Shengyi SX motor info page

More Information
ETA May 31, 2021
Country of Manufacture China
Actual Weight (kg) 3.2
Motor MFG Shengyi
Motor Power Range (Watts) 250-500
Motor KV (RPM / V) 9.8
Phase Resistance (Ohm) 0.072
Disk Brake Compatible Yes
Connector(s) Z910
Thermistor Style 10K NTC, Beta ~3450, Multiplexed with Speedo
Axle Length (O.L.D.) 135
Spoke Holes 36 Hole
Motor Type Geared
Flange Spoke Diameter (mm) 141
Magnetic Pole Pairs (Phaserunner) 72
Speedo Poles (for CA) 6
Hysteresis Losses (N-m) 0.43
Eddie Losses (N-m / rad/sec) 0.009
Motor Inductance (H) 0
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