Note: If you do not have all of these required tools we have an alternative method to perform this operation described below as the Reduced toolset Instructions.
Here is a video showing the procedure for doing this:
Drive side: right
Non-drive side: left
Crank: arm attaching pedal to axle of motor
Chainring: drives the rear wheel, via the chain and cassette.
Chainring spider: attaches the chainring to the motor.
Procedure (Full Toolset):
Use your key and remove battery/batteries from bike
Remove the pedals from each crank arm using a 5mm wrench
Remove the drive side crank bolt from the crank using the 8mm hex wrench.
Screw the crank puller into the crank arm at the axle. Use the 12” wrench to tighten the bolt on the crank puller, and extract the crank from the axle
IMPORTANT: Making sure the bike is on level, solid ground, and the chain is engaged with the chainring and a sprocket on the cassette, use the Deep Hollowtech External Bottom Bracket Socket to remove the silver lockring from the chainring spider by loosening it clockwise (the lockring is reversely threaded).
Remove the chainring spider.
On the top of the motor on the non-drive side, there is a plastic cover. Remove it by loosening the three #2 Phillips screws (Note that some motors have #3 Allen bolts instead of Phillips). This will expose the nuts on the bolts holding the motor into the frame.
With the bike upside down either in a bike stand, or on the ground (taking care not to damage the display or other controls on the handlebars), use the 13mm Socket and 5mm Hex Wrench to remove the nuts and washers from the bolts holding the motor onto the frame.
Using the 8mm hex wrench, and the deadblow hammer, tap out the bolts holding the motor onto the frame from the non-drive side.
If there are cables routed underneath the motor, pull them to either side of the motor, and then tip the motor to the back, resting the bottom on the tire, and the edge of the motor mounting bracket. Unplug the power cable, and then unplug the other cable connectors, by depressing the plastic tab on each one, and pulling apart, being careful not to damage the connectors.
Take the motor, and move to a clean surface.
Reduced Toolset Instructions
#2 Phillips Screwdriver
3mm, 5mm, 8mm Hex Wrench
Procedure (Reduced Toolset)
1: Use your key and remove the battery/batteries from your bike.
2: Push in your derailleur and remove the chain from your chainring
3: On the top of the motor, on the non drive side there is a plastic cover. Remove it loosening the three #2 Phillips screws (note that some motors may have 3mm Allen bolts instead).
4: Put the bike in a bike stand if you have one or flip the bike upside down taking care to adjust the display so it doesn’t get scratched. Use a 13mm Socket and 5mm Hex Wrench to remove the nuts and washers from the 3 bolts holding the motor on to the frame
5: Rotate the chainring to allow for the bolts circled in the picture below to clear the holes in the chainring. Use a 8mm Hex Wrench and a deadblow hammer to tap the bolts that are holding the motor in (the ones you removed the nuts and washers on in the previous step) from the non-drive side.
6: If there are cables routed underneath the motor, pull them to either side of the motor, and then tip the motor to the back, resting the bottom on the tire and the edge of the motor mounting bracket. Unplug the power cable, and then unplug any other cable connectors, by depressing the plastic tab on each one, and pulling apart, being careful not to damage the connectors.
7: Remove the motor and attached hardware and move it to a clean surface.
If you are having trouble, please submit a support ticket using the same email you placed your order under. Please note in the ticket your Biktrix order number, the trouble you are experiencing and include photos of the issue.