The Ion 100 R is daytime-visible and designed for the city. A wide beam spread, focused optics and an interruptive flash pattern make it visible from over 900m during the day. A built-in ambient light sensor provides auto-brightness control and the included Quick Connect bracket offers simple removal for recharging via the included USB cable.
Product details
Focused optics provide be seen safety with a broad but powerful light
Integrated light sensor auto-adjusts brightness in flash mode
100 Lumens via high-power CREE LED
Ideal for handlebar or on bike mount
100LM-1.5hrs, 50LM-3hrs,5LM-16hrs, Night Flash-7hrs, Day Flash-5hrs
Includes quick connect bracket and micro USB charging cable
Blendr compatible, secure bar mount available
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.
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.
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.
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.
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.
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.
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.
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, materials, and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice. Prices shown are manufacturer's suggested retail prices.
Weights are based off pre-production products at time of publication. Weights may vary in final production.
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Comp. Value
Our “Comparable Value” (Comp. Value) prices are based on the prices charged by Trek or other retailers, in-store or online, for the same or similar items. In most cases, this is a price at which Trek has offered the item for sale, and also the MSRP we provide to third-party resellers based on the prices of competing items in the market.
