Daytime Running Lights to stay bright on every ride
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Research shows that riding with a flashing, daylight-visible rear bike light is the single most effective way a cyclist can increase their likelihood of standing out to drivers. Trek Daytime Running Lights are designed with a specific flash, focus and range to make them more visible during daylight hours.
“After I put on the rear light, (drivers) respect me more, they give me more space when they have to pass me. I tell everyone I know to put lights on their bike.”
– Mads Pedersen, Lidl-Trek world Road Cycling Champion
A light for every rider
Best lights for the road
See and be seen on club rides and solo sprints with our best lights and bike radars for on-road riding.
Best lights for the city
Shine a light on early morning commutes and evening errands with these front and rear lights.
Best lights for the trail
Illuminate the path ahead with our brightest lights to boost your visibility off-road.
What makes a Daytime Running Light?
Not all lights are created equal. Brightness is important, but it takes more than a lot of lumens to make an effective Daytime Running Light. A true DRL is designed with specific focus, flash and range to be seen from a meaningful distance during daylight hours. Without these three things, you just have a light.
Focus
Creating a light visible in daylight requires intentional design. By directing or amplifying output, we intensify the beam and extend its range. Without this, a light may appear bright in your hand but may not be noticed in daylight by a motorist on the road.
Flash
Most bike lights use a steady flashing pattern that’s less noticeable than one that continually varies its intensity and pattern. Trek Daytime Running Lights use a unique flash pattern that changes constantly so you’re more likely to grab attention when it matters most.
Range
The earlier a rider is seen, the more time a driver has to react and pass safely. Trek Daytime Running Lights are designed to stand out from a distance – every model is visible from at least 400 m, and some can be seen from up to 2 km away, even during the day.
240% more noticeable
When you use a flashing bike rear light during the day, you’re up to 2.4x more noticeable than a rider using no lights at all (and up to 1.4x more noticeable than a rider only using a light in steady mode). Trek Daytime Running Lights use an interruptive flash pattern designed to stand out specifically during daylight conditions.
33% fewer collisions
Research shows a 33% decrease in accidents for bikes outfitted with Daytime Running lights.* There’s a similar trend in both cars and motorcycles that use DRLs, with 25% and 13% drops in collisions respectively.
80% of accidents are during the day
8 out of 10 cycling accidents occur during daylight hours, when most people are riding and driving. Daytime Running Lights for bikes are the single-most effective product to help increase your noticeability during these peak hours.
700% less visible than you think
Studies show that riders overestimate their visibility by 700%. The Flare R is the original Daytime Running Light, and it's still our best. Designed to help you stay seen, the Flare R is visible to motorists from up to 2 km away.
Explore our sources
The information presented throughout was curated from many sources, including the US National Library of Medicine and National Centre for Statistics and Analysis. Interested in digging deeper into the details? Explore our sources and key information below.