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After heroic efforts by the team here Grin is now operating out of our new 14,000 square foot facility on Odlum Drive.  Basic orders are being shipped out again and more complex kits and wheelbuilds should start moving the first week of February. 


GMAC Clutchless Geared Hub Motor, Standard (8.1 rpm per V) Winding.

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Customize GMAC10T
GMAC10T   + USD$425.00
GMAC Torque Arm   + USD$50.00
GMAC Toolkit   + USD$5.00

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    GMAC Clutchless Geared Hub Motor, Standard 10T (8.1 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
    Country of Manufacture Canada
    Actual Weight (kg) 3.82
    Manufacturer MAC Motor
    Motor Power Range (Watts) 600-1200
    Motor KV (RPM / V) 8.1
    Phase Resistance (Ohm) 0.07
    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) .000152