LCD replacement
This article covers how to replace the LCD and control keypad, should either of them require
replacement due to damage or malfunction.
The LCD is permanently connected to the keypad. The LCD circuitry is potted to seal it from
environmental exposure. There is no to access any of it's circuitry, or internally disconnecting
the cable to the keypad. Replacing the LCD will require replacing the keypad as well. The
keypad is assembled with screws, and uses a removable seal. The keypad buttons can be
replaced, but this is the scope of a different tech article.

Tools Required:
• 3mm hex wrench
• 2.5mm hex wrench

Parts:
The replacement LCD will include the following:
• LCD with attached keypad
• LCD mounting bracket
• rubber shims (not needed for 31.8mm handlebars)
• 3mm bolts (x2) for mounting LCD to bracket
• 3mm bolts (x2, with nylock nuts) for securing LCD bracket to handlebar
• 2.5mm bolt (x1, with nylock nut) for securing keypad to handlebar
• instruction manual for configuring LCD settings

Main Power Discharge:
Begin by removing the main battery from the down tube.
Hold the power switch down, as if you were turning the system on. The LCD will briefly light
up using the residual power that was left in the system. This will reduce the likelihood of
causing electrical damage while part of the system is being serviced.

Disconnect Harness:
Follow the cable from the back of the screen, and disconnect it from the main wiring harness.

Disconnect Keypad:
Remove 2.5 mm bolt (note: nut will try to fall out from the bottom of the clamp, when the bolt
is removed)

Pull the keypad clamp off handlebar

Disconnect Display Bracket:
Remove 3mm bolts (note: nut will try to fall out from the bottom of the clamp, when the bolt is
removed)

Spread clamp, and guide over handlebar.

If you need to swap the bracket itself, also remove the 3mm bolts (x2) attaching the bracket to
the back of the display

Installation

Spread display clamps, and place on handlebar (no shims are needed for 31.8mm diameter
handlebars)
Support nylock nuts (nylock inserts face down), and install bolts (leave first bolt finger tight,
then install second bolt, before tightening both)

Center the LCD, and adjust for tilt, before tightening the bolts.
Bolts should be just tight enough for clamps to be stiff enough to prevent movement from
vibration, but loose enough to allow manual repositioning (this also helps prevent damage in a
crash). Bolts can be turned 5° - 10° to fine tune tension.
Attach keypad to handlebar. Support nylock for keypad (nylon insert faces down).

Same as with the display, leave the bolt just tight enough to secure the switch, but still allow
for some movement. When adjusting the keypad, it can be positioned beside the brake lever,
or overlap it slightly

Plug display cable into wiring harness. Ensure proper orientation, as the pins can be
damaged if inserted incorrectly. The connectors have arrows molded onto them. They should
be exactly aligned so they point to each other.

Power On Test:
Reinstall main battery
Hold down power switch to turn system on
Watch LCD for backlight function, and that all display segments work
Check that the buttons work on the keypad

Please note that the LCD module stores the settings for wheel size, speed display units and
other operational parameters. You will need to reconfigure your settings after changing an
LCD to ensure proper performance of your ebike.

This article only covers the mechanical side of the LCD replacement. To configure the
settings, please refer to instruction booklet included with the replacement LCD.