GMAC 8T

$480.00
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Ships from our warehouse in 5-10 business days

If purchasing this motor built into a wheel, please allow 3-4 days extra processing time to ready the wheel build. All of our wheels are hand built to order.

This motor works well as a replacement/upgrade in the ELF solar e-bike. It fits in ELFs that originally had the geared MAC motor (model years 2013-2015). If your ELF originally had the TDCM direct drive motor (made in ~2015-2019), we recommend this motor instead. 

Pair with the Baserunner L10 or Phaserunner motor controller for optimal results.

"GMAC Clutchless Geared Hub Motor, 8T (10.2 rpm/V) Winding. This motor includes an internal 6-pole speedeometer sensor so it can use a CA-DP device and not require an external speedo pickup. Includes 3 piece CNC'd torque arm with inner spline made from 7075 alloy. For more details see the GMAC Info Page

 

More Information
Actual Weight (kg) 3.82
Manufacturer MAC Motor
Motor Power Range (Watts) 600-1200
Motor KV (RPM / V) 10.2
Phase Resistance (Ohm) 0.046
Disk Brake Compatible Yes
Connector(s) L1019
Axle Length (O.L.D.) 138
Spoke Holes 36 Hole
Motor Type Geared
Flange Spoke Diameter (mm) 173
Magnetic Pole Pairs (Phaserunner) 80
Speedo Poles (for CA) 6
Hysteresis Losses (N-m) 1
Eddie Losses (N-m / rad/sec) .013
Motor Inductance (H) .00014

 

GMAC Motor Dimensional Diagram

GMAC Hub, 3D CAD Model"

^ Above information provided by Grin Technologies, the supplier. 

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