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The Trek Ion 100R and Flare R City light set offers the visibility of a daytime running light and versatility of compact design that easily mounts to any bike. Focused optics, an interruptive flash pattern, and broad range boost visibility day or night with a wide beam spread optimized for city riding. These USB rechargeable lights are a must-have for city and shared-road riding.
"Bontrager's Ion 100 R/Flare R City lights are miniscule, but thanks to CREE LEDs and clever optics they pack a serious punch"
Read more"I've been pleasantly surprised by how effective the distinctive phasing is at nailing driver attention"
Read more"I can’t think of a better way to spend the next 80 bucks you have burning a hole in your pocket."
Read more"Don’t be fooled by the tiny cubes; these compact units put out the power."
Read moreGet 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 gearResearch 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 moreWhere 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 moreUsing lights and wearing hi-vis apparel on every ride can help you stand out to drivers.
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