Rungu Taillight Owner's manual

V1.0 Rungu Taillight Installation and Operation
Copyright 2017 Standard Bearer Machines, LLC Page 1of 15
rungu®taillight
installation and operation
The Rungu taillight by GUB provides great visibility for Rungu riders on and off-road when riding at night.
The taillight has five different modes of operation, and using the appropriate mount, attaches to any
Rungu or Rungu Dualie. The taillight includes a sensor that detects braking causing the taillight to
illuminate more in the same manner as a brake light.

V1.0 Rungu Taillight Installation and Operation
Copyright 2017 Standard Bearer Machines, LLC Page 2of 15
Contents
Installing the light to a seatpost (Rungu Juggernaut/Dualie Standard)........................................................3
Tools required...........................................................................................................................................3
Installation ................................................................................................................................................3
Installing the light to a Rungu Cargo Rack –Single Battery Models (Rungu Dualie Steep/Rugged).............5
Tools required...........................................................................................................................................5
Installation ................................................................................................................................................5
Installing the light to a Rungu Cargo Rack –Dual Battery Models (Rungu XR Models)................................9
Tools required...........................................................................................................................................9
Installation ................................................................................................................................................9
Charging the taillight...................................................................................................................................13
Operating the taillight.................................................................................................................................15
Turning the taillight on and off...............................................................................................................15
Taillight operating modes .......................................................................................................................15

V1.0 Rungu Taillight Installation and Operation
Copyright 2017 Standard Bearer Machines, LLC Page 3of 15
Installing the light to a seatpost (Rungu Juggernaut/Dualie Standard)
Tools required
•None
Installation
The taillight kit comes with the mounting strap and socket, taillight and charging cable. First strap the
socket to the seat post as shown below.
Make sure to orient the socket so that it points the tail light horizontally to the rear as shown below.

V1.0 Rungu Taillight Installation and Operation
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Screw the taillight into the socket.

V1.0 Rungu Taillight Installation and Operation
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Installing the light to a Rungu Cargo Rack –Single Battery Models (Rungu
Dualie Steep/Rugged)
Tools required
•5mm hex wrench
Installation
The taillight kit comes with the Cargo Rack mount with socket, two M6 screws and washers, taillight and
charging cable as shown below.
First, use the 5mm hex wrench to remove the two screws holding the Cargo Rack stiffener in place in the
rear of the Cargo Rack.

V1.0 Rungu Taillight Installation and Operation
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Align the mount with the screw holes as shown and use the 5mm hex wrench to install the first M6
screw and washer from the installation kit. Note that the socket side of the mount faces the rear of the
cargo rack.

V1.0 Rungu Taillight Installation and Operation
Copyright 2017 Standard Bearer Machines, LLC Page 7of 15
Install the second screw into the slot and use the hex wrench to tighten the screw into the Cargo Rack.
Tighten both screws.
The installed mount should appear the same as below

V1.0 Rungu Taillight Installation and Operation
Copyright 2017 Standard Bearer Machines, LLC Page 8of 15
Screw the taillight into the mount socket.

V1.0 Rungu Taillight Installation and Operation
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Installing the light to a Rungu Cargo Rack –Dual Battery Models (Rungu
XR Models)
Tools required
•5mm hex wrench
•10mm socket wrench
•Needlenose pliers
Installation
The taillight kit comes with the Cargo Rack Dual Battery mount with socket, two M6 screws, nuts and
washers, taillight and charging cable as shown below.
First, open the rear battery case; disconnect and remove the rear battery. Looking under the hinge of
the battery case door you’ll see two hole-plugs. Use a pair of needle nose pliers to remove the hole-
plugs. Discard the plugs when removed.

V1.0 Rungu Taillight Installation and Operation
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From the back of the cargo rack, insert the taillight mount so that the two circular bosses align with the
two unplugged holes. Install the first screw and washer from the inside of the battery case through the
hole in one of the bosses. Secure the screw with the end of the 5mm hex wrench, then finger tighten the
nut on the outside of the cargo rack. The washer and hole in the mount are offset from the main hole to
allow the washer to grip the inside of the case.

V1.0 Rungu Taillight Installation and Operation
Copyright 2017 Standard Bearer Machines, LLC Page 11 of 15
Use the 10mm socket wrench to secure the nut from the outside and stabilize the mount against the
back of the cargo rack. While securing the screw with the hex wrench, tighten the nut using the socket
wrench.
Repeat the installation of the second screw, washer and nut. The installed mount should appear the
same as below.

V1.0 Rungu Taillight Installation and Operation
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Screw the taillight into the mount socket.

V1.0 Rungu Taillight Installation and Operation
Copyright 2017 Standard Bearer Machines, LLC Page 13 of 15
Charging the taillight
The taillight is not powered from the Rungu battery, so it occasionally needs to be recharged with the
charging cable shown below.
To recharge the taillight, unscrew the taillight from the mount. Install the charging cable into the back of
the taillight. Connect the other end to a USB charger port as you would use for your cell phone. You can
also charge it from the battery on Rungu Dualie integrated battery units, or from the port under the
display on all Rungu Dualies (though the Rungu Dualie must be turned on for the port to work).

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V1.0 Rungu Taillight Installation and Operation
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Operating the taillight
The Rungu Taillight by GUB has 5 operating modes all accessed by pressing the button power button in
the center of the taillight.
Turning the taillight on and off
Press the power button in the center of the taillight to turn on the taillight. Press and hold down the
power button for three seconds to turn off the taillight. The taillight automatically turns off if it doesn’t
sense motion after a few minutes.
Taillight operating modes
There are five different taillight settings and each one can sense braking to illuminate brighter just like a
brake light in a car. Each time you press the button in the center of the taillight for one second after
turning on the taillight changes the way the taillight operates. After the fifth press of the button, the
taillight returns to the default mode. In this way you can cycle through all five modes.
Mode
Button press
Description
Brake light 1
Default/turn
on/full cycle
Taillight illuminates at lowest brightness and then gets three times
brighter when sensing braking/deceleration
Brake Light 2
One
Taillight illuminates brighter and then gets three times brighter
when sensing braking/deceleration
Flashing 1
Two
Taillight flashes approximately once/second –illuminates brighter
when sensing braking/deceleration
Flashing 2
Three
Taillight flashes rapidly–illuminates brighter when sensing
braking/deceleration
Pulsating
Four
Taillight pulsates –illuminates brighter when sensing
braking/deceleration