Rear Motor Wheel
Install your rim liner, inner tube and tyre onto the new wheel, then fit your disc brake rotor. Confirm directional arrows of the tyre and disc are facing the correct way. Place the motor wheel on to the frame, ensuring the cables are heading towards the controller. Spacers should be distributed to suit your bike and prevent moving parts from rubbing. Check if the gears, brakes or chain are rubbing on any components. You may have to adjust the brake calliper or deralier position to suit the new wheel, alternatively you could move the spacers to different sides of the drop outs. Bare in mind when tightening the axel nuts, the frame will squeeze together slightly. If your gears do not match the new wheel perfectly, do not panic. You will want to stay in the highest gear 99% of the time. Finally, make sure the axel nuts are tight. This motor provides a lot of torque which may lead to movement in the wheel unless it is firmly secured.
Battery
The ideal place to mount the battery is in the middle of the frame, where the drinks holder is. Using the mounting tray from beneath your battery, check to see if the battery will fit. If it doesn’t, there are a few options;
• Drill a new hole higher up the frame and add a threaded rivet
• Find a battery with a tray that will fit
• Install the battery the opposite way (front of battery facing down the frame)
• Place the battery on a pannier rack above the back wheel if using a soft pack
Installing Components
Pedal Assist System (Optional) - Start by removing the left crank arm and the bottom bracket cup, place the sensor behind this cup and screw back on to hold firmly in place. Fit the PAS magnet ring to the spindle ensuring to leave a small gap from the sensor (around 2mm) and the arrows face forward. Remember to adjust the PAS settings once powered up shown in the LCD display guide.
Throttle - Remove the old grip and tighten the throttle to the chosen position making sure to leave space for any gear levers that need to be operated.
LCD Display - Place the screen in the centre above the stem and use the rubber adapters to match the thickness of your handle bars.
Brake Levers (Optional) - Remove the old brake levers leaving the cable where it is, fit the new brake levers then hook the cables into the new levers.
Controller Connections - Setting your connections up solidly could save you from getting stranded miles away from your destination, so it is important to take your time and get them right the first time. Connect the motor wheel (3 phase wires and hall sensor), throttle, LCD display, PAS & brake levers if these are being used then the positive and negative from the battery last. Firmly insert all bullet connections, for added security wrap with heat shrink or electrical tape. To ensure you are connecting the right outlets, check the colours of the thinner wires match up (thumb throttle may be different). Make sure all the pins are straight in the connectors before pushing them together, failing to do so could cause damage. If the connection on your battery is different to the bullet connector on the controller, don’t worry it's an easy fix. You can attach your own connection to match, install an electrical junction box or use a butt connector, all options should take no longer than 10 minutes.
Controller Bag - Install the controller bag above the battery without trapping any brake cables that may run there. Pack all loose wires into the bag and close the zip as far as possible. Use cable ties to secure all wires, this avoids snagging and leaves a tidy finish.
LCD DISPLAY SETTINGS - Access the menu by holding the up and down arrows together. Settings should always be set to match the chosen rider set up. If you do not install the pedal assist system, you must change setting 10 to position 1 for throttle only. You can use 36V or 48V batteries with this kit, however you must choose the relevant Voltage using the display. Refer to the SW900 user manual that comes in the box for the full functions list.
Don’t hesitate to contact a member of our team if you have any problems with the installation.