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Small but powerful

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 2km 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

  1. Focused optics provide be seen safety with a broad but powerful light
  2. Integrated light sensor auto-adjusts brightness in flash mode
  3. 100 Lumens via high-power CREE LED
  4. Ideal for handlebar or on bike mount
  5. 100LM-1.5hrs, 50LM-3hrs,5LM-16hrs, Night Flash-7hrs, Day Flash-5hrs
  6. Includes quick connect bracket and micro USB charging cable
  7. Blendr compatible, secure bar mount available

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Features

See me now

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.

240% more noticeable

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.

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Longer life

Longer life

When battery power dips below 5%, light output is scaled back to substantially extend the remaining battery life.

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Specifications

Rechargeable Yes
Battery 250 Li-Ion
Weight 48g
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, and materials.
Weights are based off Trek pre-production products at time of publication. Weights may vary in final production.

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