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This manual is for Bontrager lights Ion 450R and Ion 450RT.
The RT version allows wireless control when paired with the Bontrager Transmitr system. Please read this entire manual. Check for updates at bontrager.com
Check your local lighting laws. Flashing Lights and full brightness may not be allowed in all locations. Ion 450 R/RT do not conform to the German road traffic regulation StVZO.
If you need help not offered by this manual, talk to your Bontrager retailer or visit bontrager.com
"To see" LED light source provides a bright light up to 450 lumens in a focused 15-degree beam pattern to illuminate the road ahead.
"To be seen" light sources at the sides of the light provide 270-degree visibility.
The permanently enclosed Lithium-ion (Li-ion) battery is a high-performance rechargeable 1450 mAh cell.
(PN W527649)
Quick connect fits any size of round handlebar, 22.2mm to 35mm.
The mount may be turned 90 degrees for attaching to the stem.
(PN W327765)
Micro USB cable can be plugged into a computer or wall adapter (adapter not included).
This light is compatible with these optional mounting systems. Please see your Bontrager retailer for details.
(PN 428462)
(PN 516635)
(PN W530421 fits 22.2-31.8mm)
(PN 552375 fits 31.8-35mm)
(PN 418921)
Before first use, charge the battery.
If desired, the bracket can be placed on the stem. Rotate the mount 90 degrees.
Note: Use the second hook to latch excess strap.
To remove the light, press down on the tab and slide the light forward.
To turn on, press the power button.
When turned on, the Ion 450 will be in the output mode last used before turning off.
To turn off, press and hold the power button.
Power button
The power button LED tells the percent of battery charge that remains.
Power button LED color | Run time |
Green | 25 to 100% |
Red steady | 5 to 25% |
Red flashing | Less than 5% |
Mode | Lumen Output (peak) | Runtime (hours) |
High | 450 | 1.5 |
Medium | 200 | 3 |
Low | 100 | 6 |
Night Flash | 50 steady with 150 flash | 8 |
Day Flash | 300 day pattern | 10 |
Low Battery
Low Battery protection automatically adjusts the output brightness to 50 lumens when the battery supply goes below 5% and extends the light output for an additional 20 – 30 minutes.
High Beam* enables full brightness when paired with Transmitr Remote and center button on remote is pressed. Pressing the center button again will return light to previous mode.
* Ion 450 RT only - The high beam feature can be used only when paired to a Transmitr Remote.
Trail Configuration enables the Ion 450 R/RT to toggle between 450 and 200 lumen steady modes. To enable and disable press and hold the power button for 10 seconds with the light off. The main LED will flash once indicating trail configuration has been enabled/disabled.
The light may be hot to touch.
Although the Ion 450R/RT is fully charged at the factory, it is recommended to charge it before first use. Complete charging takes approximately 4 hours from empty.
While charging, the status indicator will flash:
NOTE: As the battery progresses from zero charge to full charge, the duration of the flashes will get progressively longer.
The power button LED indicates the battery charging status.
Power button color | Battery power status |
Flashing red | Charging: flash rate slows as charge nears completion |
Green | Charge complete |
For best results, charge at room temperature in a dry place. Avoid extreme conditions including wet, cold, or extremely hot.
NOTE: Use with a quality CE or UL approved USB charger rated for 500 mA or greater.
The Transmitr Remote or select Garmin Edge computers, sold separately, allows remote control of the light. This feature is only available on the Ion 450RTor other compatible Transmitr lights.
For more complete instructions, refer to the Transmitr manual at bontrager.com or visit support.garmin.com for Garmin related instruction and a complete listing of compatible Edge devices.
All pairings must be done in a single session. Before starting, place the remote and all lights within a small area.
NOTE: Move 15 feet from other Transmitr / ANT+ compatible lights to prevent accidental pairing. If a light is accidentally paired, start the pairing process over.
NOTE: After completing this step, do not press the power button on the light again until pairing is complete.
Controlling Lights with the Transmitr Remote
To turn on all lights
ON: Quick-press the center button.
OFF: Press and hold the center button.
To turn on an individual light
ON: Quick-press the corner button that controls the light.
OFF: Press and hold the same button.
To change modes of an individual light
Each quick-press of a button that controls a light will cycle through the modes.
Seeing Battery Power Status of the light on the Remote
When a corner button is pressed, the center button will show the battery status of the light
Button light color | Power remaining |
Green | More than 25% |
Red | Between 5% and 25% |
Blinking red | Less than 5% |
Li-ion batteries cannot be shipped by air due to an overheating hazard. When traveling by air, place the light in your carry-on.
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
Download Trek Bicycle Bontrager 450R/RT - Front Bike Light Manual
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