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Daytime Running Lights
Be seen every ride with lights designed for 24/7 visibility. Bontrager Daytime Running Lights are designed with a specific flash, focus, and range to make them visible from up to 2km, during the day.
"Very small, yet surprisingly mighty"
"I've been pleasantly surprised by how effective the distinctive phasing is at nailing driver attention"
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4.5/5 stars
"Bontrager's Ion 100 R/Flare R City lights are miniscule, but thanks to CREE LEDs and clever optics they pack a serious punch"
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"Three cheers for visibility"
"I can’t think of a better way to spend the next 80 bucks you have burning a hole in your pocket."
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"Bike lights we love"
"Don’t be fooled by the tiny cubes; these compact units put out the power."
Read moreAll your favorites, all in one place
Get all your favorite apparel from over 80 of the world's best cycling brands delivered right to your doorstep or local Trek retailer when you shop our curated online collection. If you're not 100% satisfied, you can return your purchase within 30 days for a full refund.
Shop all gearThe always-on team
Research shows the single most impactful measure you can take to stand out to motorists is to use front and rear Daytime Running Lights. The team uses them on every training ride, any time of day—and they’ve found that these lights truly make a difference.
Read moreHow to mount your lights
Where and how you mount your lights can make a huge difference. Follow these steps to ensure you get the best visibility from your lights.
Learn moreHow to be seen
Using lights and wearing hi-vis apparel on every ride can help you stand out to drivers.
Learn moreProduct features
See me now
Research shows that riding with a flashing, daylight-visible rear light is the single most effective measure a cyclist can take to increase their likelihood of standing out to drivers.
Daytime Running Lights
Bontrager and Trek daytime running lights are compact and powerful and feature an interruptive flash pattern that's daytime visible from up to 2km away.
240% more noticeable
When you use a flashing tail light during the day, studies show you’re up to 240% more noticeable than a rider using no lights at all.
Flash, focus, range
Not all lights are created equal. A true DRL is designed with specific focus, flash, and range to be seen from a meaningful distance during the day. Without these three things, you just have a light.
Longer Life
When battery power dips below 5%, light output is scaled back to substantially extend the remaining battery life.
Daytime Running Lights
Not all lights are created equal. Bontrager and Trek Daytime Running Lights are designed to be visible whenever you ride, day or night.
Read more30-Day Unconditional Guarantee
If for any reason you're not satisfied with a Bontrager or Trek aftermarket purchase, return the item, along with the original sales receipt to the original place of purchase within 30 days for an exchange or refund. Think of it as a 30-day test ride.
Learn morePeruse the product manual
Whether you're looking for instructions on how to reset your cycling computer, charging guidelines for your light, or anything in between, we're here to help. Click on the link to download the product manual.
Learn more| Battery | Li-Ion 250mAh 3.7 Volt |
|---|---|
| Milliampere-hour (mAh) | 250mAh |
| Rechargeable | Micro-USB |
| Charge time | 1.5 hours |
| Dimensions | 28.7 L x 28.5 W x 28.5 H (mm) |
| Waterproof rating | IP46 |
| Wireless compatibility | Not applicable |
| Blendr compatible | Yes |
| Weight | 48g |