Trek Commuter Pro RT and Bontrager Flare RT Bike Lights
This document provides information on the Trek Commuter Pro RT front bike light and the Bontrager Flare RT rear bike light.
About This Product
The Commuter Pro RT features an anti-glare beam designed to direct light precisely where needed, avoiding oncoming traffic. It offers daytime visibility up to 2km. The Bontrager Flare RT serves as a safety rear daytime running light. Both lights are rechargeable and can be controlled remotely when paired with the Transmitr Micro Remote.
Warnings
- WARNING: The front light is very bright. Do not stare directly at an operating front light, as it may be harmful to the eyes.
- WARNING: The front light may become hot and could cause burns or damage to materials it contacts. Do not activate the light in an enclosed area.
- WARNING: Do not use if the battery has been impacted. Do not puncture, crush, deform, disassemble, or heat a lithium-ion battery above the permitted temperature. Damage to the battery can result in fire, explosion, or contact with lithium dust.
IMPORTANT: Check local lighting laws. Flashing lights and full brightness may not be permitted everywhere. These lights do not conform to German road traffic regulations (StVZO).
Specifications
- Battery Charging and Operating Temperature: 32°F (0°C) to 104°F (40°C). If plugged in outside this range, the LED indicator will flash red 3 times with a pause until the light is within the temperature range. Performance may be reduced below freezing.
- Commuter Pro RT: 4900 mAh, 3.6V, 17.64Wh, 21700 lithium-ion battery. Weight: 228g (8.0oz). Ingress Rating: IPX4.
- Flare RT: 420mAh, 3.7 Vdc, 1.6 Wh lithium polymer battery. Ingress Rating: IPX7.
Parts List
- Commuter Pro RT (included): Light, 25.4-35.0mm Adjustable Bar Mount with shim (PN 552375), USB-C Charging Cable (PN W5268686).
- Flare RT (included): Light, Quick-connect bracket for tail light (PN W533846), Micro USB Charging Cable (PN W559136, 4-wire).
Safety Note
A bicycle without correct lights and reflectors can be difficult for others to see, and you may not be able to see them. This can lead to accidents. Ensure your lights are set up correctly, operating properly, and batteries are charged.
Commuter Pro RT: Basic Operation
- To turn on, double-click the power button. The power button will illuminate.
- To turn off, press and hold the power button for 1 second.
- To change modes, single-click the power button to cycle through: High beam > Low beam > Day Flash.
The power button indicates the mode: Blue solid for High beam, White solid for Low beam, and White pulse for Day Flash. If wireless is enabled, the power button will flash blue before indicating the mode.
Enable/Disable Flash Bypass Mode
For night riding, disable flash mode to easily switch between steady modes. With the light on, press and hold the power button for 8 seconds. Release the button after the flash. This changes the light to steady modes; a single click will alternate between High beam and Low beam only.
Charge-out Feature
The Commuter Pro RT can function as a backup battery. To enable: Turn the light off, then press and hold the power button for 8 seconds. Release when the main light flashes once. Connect a USB-C cable from the Commuter Pro RT to the device to charge. The light must be in charge-out mode before connecting the cable. The left light row shows the Commuter Pro RT's battery life; the right row flashes to indicate power sharing. To exit charge-out mode, unplug the external device and single-click the power button; the right light row will stop blinking.
Pairing Feature
The Commuter Pro RT can wirelessly pair with other Trek/Bontrager RT lights. To pair: Turn the Commuter Pro RT ON, place the other light nearby. Press and hold the Commuter Pro RT power button for 15 seconds (release after the second flash at 15 seconds). The button LED will flash red and blue while searching. Pairing stops when the other light flashes on and off. To control a paired light: Double-click the Commuter Pro RT to turn it on, press and hold for 1 second to turn it off. Use the Commuter Pro RT to turn on the paired light, then use the button on the paired light to change its mode. Turn the paired light off using the Commuter Pro RT.
To disable a paired light: Turn the Commuter Pro RT ON, ensure the paired light is not nearby. Press and hold the power button for 15 seconds (it becomes unpaired after 10 seconds).
Reset
To reset to factory default settings: With the light plugged in to charge, press and hold the power button for 15 seconds. Release the button after the second flash (at 8 and 15 seconds).
Flare RT: Basic Operation and Mode Change
To power on, press the power button. The light will be in the last used output mode. To power off, press and hold the power button until the light turns off.
To change modes, quick-press the power button to cycle through modes. Table 2 details modes, output, runtime, and battery status. ¹With auto brightness enabled. Turn on and select the desired mode. Press and hold the power button for 8 seconds to select it. The light will turn off and the main LED will flash once. Repeat the process to unlock. To reset to factory default settings: With the light on, press and hold the power button for 15 seconds. The main LED will flash once at 8 seconds and again at 15 seconds. Release the button after the second flash.Table 2: Flare RT Modes, Runtimes, and Battery Life
Model Mode Max Output (lumens) Runtime (hours) Power Button/Status LED Color Battery Life, % Flare RT Day Flash¹ 90 6 Green Steady 25 to 100% Flare RT All Day Flash¹ 45 12 Flare RT Night Flash 5 15 Red Steady 5 to 25% Flare RT Day Steady¹ 25 4.5 Flare RT Night Steady 5 13.5 Red Flashing < 5% Locking/Unlocking the Mode
Reset
Wireless Communication (Commuter Pro RT & Flare RT)
The lights are shipped with ANT+ and Bluetooth wireless connectivity enabled. To disable: With the light off, press and hold the power button for 15 seconds. Release the button after the second flash (at 8 and 15 seconds).
- Note (Flare RT): Status LED turns blue for 3 seconds if wireless is enabled; otherwise, it immediately displays battery level.
- Note (Commuter Pro RT): Status LED pulses blue for 3 seconds if wireless is enabled; otherwise, it immediately displays the mode.
Battery Charging and Care
Both lights are charged prior to packaging but should be charged before first use. For best results, charge at room temperature in a dry place using a certified CE or UL approved USB-C cable rated for 2 Amps or greater. Avoid extreme conditions (wet, cold, heat).
If the main button indicator flashes red while plugged in, the light is too hot or too cold to charge. Charging will commence when the light is between 32°F (0°C) and 104°F (40°C).
If the light is plugged in while on, it will automatically turn off (indicated by 3 red flashes). Attempting to turn the light on while charging will not work (indicated by 3 red flashes).
- Open the USB port cover.
- Plug the USB-C cable into the light's USB port.
- Plug the cable into a wall adapter.
- When charging is complete, unplug the cable and close the USB port cover.
IMPORTANT: Ensure the USB cover is latched before riding in wet conditions to prevent damage to the light.
Commuter Pro RT Battery Charging Indicators (Table 3)
| Fuel Gauge | Charge, % | Charge Duration |
|---|---|---|
| Five lights green | 80% - 100% | 5 hours |
| Four lights green | 60%-80% | |
| Three lights green | 40%-60% | |
| Two lights amber | 20%-40% | |
| One light red | 5%-20% | |
| One light red flashing | 0%-5% |
When fully charged, the five green lights stay on for 1 minute, then turn off. If plugged in after complete discharge, it may take a minute for the LED indicator to show charging is occurring.
Flare RT Charging Status Indicator (Table 4)
| Power Button/Status LED Color | Charge, % | Charge Duration (hours) |
|---|---|---|
| Red Flash | 0%-75% | |
| Green Flash | 75%-99% | 1.5 |
| Green Steady² | 99%-100% |
*Fully charged, the status LED will be solid for 1 minute then turn off.
Low Battery Feature
- Commuter Pro RT: Left row shows one red light below 20%, one red light flashing at 5% or below. Modes and settings may be disabled when below 5%.
- Flare RT: Indicator LED flashes red when the battery is below 5%.
Caring for the Battery
- Store the light at room temperature in a dry place, avoiding moisture, extreme heat, or cold.
- Store the light in a charged condition; storing it fully discharged will decrease battery life.
- Battery runtime diminishes over time; expect approximately 500 full charges depending on care. After its full life, the battery will still charge but with reduced runtime. Do not open the case or incinerate; please recycle.
Traveling with the Battery
When traveling by air, verify with your carrier the requirements for lithium-ion batteries of this capacity. They often need to be packed in carry-on luggage.
Protection
These lights are designed and tested for all riding conditions with ingress ratings of IPX4 (Commuter Pro RT) and IPX7 (Flare RT). They are not intended for outdoor storage and should be stored indoors after use.
Recycling
Please recycle the light with its battery. In the US, find recycling locations at www.call2recycle.org. For European and International consumers, contact your local bike shop. Products marked with this symbol should not be mixed with general household waste. Take them to designated collection points for proper treatment, recovery, and recycling. Correct disposal helps conserve resources and prevent negative environmental or health effects.
Light Installation
Commuter Pro RT Installation
NOTE: Due to its unique cutoff beam, this front light cannot be mounted upside down.
- Loosen the knob and open the mount.
- Adjust the mount for bar size (31.8mm or 35mm).
- Close and tighten the knob.
- Slide the light onto the mount until it locks into place.
NOTE: Use the provided shim to fit 25.4mm bars.
Removal: Press down on the light and slide it off the mount.
Flare RT Installation
- Install the quick-connect bracket on the seatpost with the lever towards the drive side of the bike. The lens should be perpendicular to the ground, and the saddle icon should point in the same direction as the bike's saddle.
- Stretch the strap around the seatpost and connect it to the hook.
- Slide the light onto the bracket.
Contact Information
For assistance not covered in this manual, consult your Trek bike shop or visit trekbikes.com.
North America: Trek Bicycle Corporation, 801 West Madison Street, Waterloo, WI 53594 USA, Tel: 1-800-585-8735
Europe: Bikeurope BV, Ceintuurbaan 2-20C, 3847 LG Harderwijk, The Netherlands, Tel: +31 (0)88 4500699
Australia: Trek Bicycle Corp. Au., 8 Townsville Street (Level One), Fyshwick (ACT) 2609 AU, Tel: +61 (02) 61 732 400
United Kingdom: Trek Bicycle Corporation Ltd., 9 Sherbourne Drive, Tilbrook, Milton Keynes, MK7 8HX, Tel: +44 1908 360 140
Regulatory Compliance
Canadian Compliance
Commuter Pro RT ISED ID: 21334-B97371576 / Flare RT ISED ID: 21334-553852. CAN ICES-3(B)/NMB-3(B). These devices comply with Industry Canada license-exempt RSS standard(s). Operation is subject to two conditions: (1) no interference, and (2) acceptance of any interference. The Commuter Pro RT and Flare RT comply with FCC and IC radiation exposure limits for uncontrolled environments. More information is available at http://www.ic.gc.ca/app/sitt/reltel/srch/nwRdSrch.do?lang=eng and http://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf08792.html.
UK Compliance
Trek Bicycle Corporation declares that the 'Commuter PRO RT' and 'Flare RT' lighting devices comply with UK legislation including The Electromagnetic Compatibility Regulations 2016, Electrical Equipment (Safety) Regulations 2016, The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012, and The Radio Equipment Regulations 2017. The full text of the UK declaration of conformity is available from your dealer or at www.trekbikes.com/coc-doc.
FCC Compliance
Commuter Pro RT FCC ID: 2AHXD-5252795 / Flare RT FCC ID: 2AHXD553852. These devices comply with Part 15 of the FCC Rules. Operation is subject to: (1) no harmful interference, and (2) acceptance of received interference. This equipment complies with Class B digital device limits, designed for reasonable protection against harmful interference. It may cause interference to radio communications; no guarantee against interference in a particular installation. These products may interfere with radio equipment and should not be installed near maritime safety communications or critical navigation equipment. If interference occurs, try correcting it by reorienting the antenna, increasing separation, connecting to a different circuit, or consulting a dealer. Trek Bicycle Corporation is not responsible for interference caused by unauthorized modifications. Exposure to radio frequency energy is within FCC/IC limits, with a minimum separation distance of 5mm (1/4 inches) from a person's body.
European Union Compliance
Trek Bicycle Corporation and Bontrager declare that the 'Commuter Pro RT' and 'Flare RT' lighting devices comply with EU Directives: EMC Directive 2014/30/EU, Low Voltage Directive 2014/35/EU, RoHS Directives 2011/65/EU, 2015/863/EU and (EU) 2017/2102, and Radio Equipment Directive 2014/53/EU. The full text of the EU declaration of conformity is available from your dealer or at www.trekbikes.com/coc-doc. The lights do not conform to German StVZO regulations.
South Korean Compliance
Commuter PRO RT P/N 5252795: Manufacturer: TREK Bicycle Corporation. Model: Commuter PRO RT, 5252795. Made in Taiwan. Certification ID: R-C-T3B-5252795. For bicycle headlight use only.
Flare RT, P/N 553852: Manufacturer: TREK Bicycle Corporation. Model: Wireless data communication system equipment, 553852. Made in Taiwan. Certification ID: R-C-T3B-553852. This wireless equipment may cause radio interference and cannot be used for life-safety services. For bicycle headlight use only.
Manuals in Other Languages
For manuals in other languages, visit www.trekbikes.com/support and find the Commuter Pro RT and Flare RT manual on the Manuals and user guides page.
Available languages include Czech (CZ), German (DE), French (FR), Spanish (ES), Italian (IT), Polish (PL), Portuguese (PT), Dutch (NL), Slovak (SL), Japanese (JA), Korean (KO), and Chinese (ZH).
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