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                   GMAC Installation Guide

                                            Rev 1.0

Tools needed:

Adjustable Wrench (10mm-17mm) - T20 torx screwdriver - M4 Allen Key 

Machined Torque Arm Components:

Torque Plate Installation:

If the motor requires a disk rotor, remove the installed torque plate to 
access disk rotor bolts. This may require prying with a screwdriver.

Remove the disk spacer ring and replace it with the disk rotor.

Reposition the torque plate over the axle splines, aligning the slot with 
the wire exit. 

Align the splines of the axle into the torque plate and press or tap the 
plate down until the splines protrude past the plate. 

Summary of Contents for GMAC

Page 1: ...so be eliminated as well Round 10mm Axle By using a round 10mm axle the hub fits properly inside the bicycle dropout slot and the disk rotor aligns properly with industry standard Integrated Torque Arm An integrated torque arm on the splined portion of the motor axle allows for zero play installations to handle forwards and regen torques without any slop It also eliminates torque transmission and ...

Page 2: ...disk rotor remove the installed torque plate to access disk rotor bolts This may require prying with a screwdriver Remove the disk spacer ring and replace it with the disk rotor Reposition the torque plate over the axle splines aligning the slot with the wire exit Align the splines of the axle into the torque plate and press or tap the plate down until the splines protrude past the plate ...

Page 3: ...f your frame has either a different angle on the dropouts for example a horizontal dropout you would need to remove the torque arm from the torque plate and rotate it such that the wire exit matches the angle of the dropout when the torque arm is rotated to meet the frame s chain stay The splined interface allows for rotation between the torque arm and torque plate in 30 degree steps Once the arm ...

Page 4: ...Select the one that fits most closely with the plane of the torque arm and then secure them together with the M5 bolt and flanged nyloc nut Finally secure the Frame Holder to the chainstay using the two hose clamps The black shrink tubing can be installed over each band in order protect the paint finish and have a more discrete look The M10 washers and axle nuts must also be installed and thorough...

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