Trek CarBack Radar Tail Light in Black - view 2

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Trek / Bike Lights

Trek CarBack Radar Rear Bike Light

CarBack helps you ride with more confidence with a radar that detects rear-approaching vehicles and a taillight that's visible from up to 2km away

$199.99

In stock today at Alpharetta · Ansley · Roswell · Vinings

Free pickup at any of our four stores. Questions? We're happy to help.

About this product

The details.

Know what's coming

Ride with extra confidence with Trek CarBack Radar Rear Light. CarBack's radar helps detect rear-approaching vehicles from up to 240m and provides audio and visual alerts through paired GPS head units for increased on-bike awareness.

Built with integrated best-in-class Daytime Running Lights that are visible from up to 2km away, CarBack is a must-have for every cyclist riding on shared roads.

Product details

CarBack can detect and alert riders of rear-approaching vehicles from up to 240m away
Compatible with most cycling GPS computers
Pair CarBack with the Trek Accessory app to see a vehicle's rear-approaching and passing distance on your smartphone
Designed with focus, flash, and range to be Daytime-visible from up to 2km away
Four light flash modes: Day Flash 90LM, Day Steady 25LM, Night Steady 5LM, and Night Flash 5LM
Visible fuel gauge LEDs make it easy to see CarBack's 7+ hour battery status
IPX7 waterproof rating to confidently ride through wet conditions
Includes Quick Connect Plus rear mount and USB-C charging cable

What makes it special

The little details. The big difference.

01
Helps drivers see you
Enjoy best-in-class visibility with an interruptive flash pattern that’s daytime visible from up to 2km away.
02
Helps you see cars
CarBack Radar can detect rear approaching vehicles from up to 240m away.
03
Visible battery gauge
A four-bar LED battery gauge makes it easy to read your battery status.
04
Waterproof USB-C charging port
An IPX7 waterproof rating helps ensure trouble-free operation in all conditions, and the USB-C port makes it quick and easy to charge.
05
Compact design
A smaller profile makes it easier to mount CarBack on smaller frames and with saddle bags.
06
Universal ANT+ connectivity
CarBack pairs with most major cycling computers, so you can use it with the GPS head unit you already have.

The details

Good to know-

Specs8

Battery: Li-Poly 3.7Vdc 2000mAh 7.4Wh
Milliampere-hour (mAh): 2000mAh
Rechargeable: Yes
Charge time: 4 hours
Dimensions: 70 L x 50 W x 25 H (mm)
Waterproof rating: IPX7
Blendr compatible: Yes
Weight: 87.0g

Good to know3

Easy firmware updates Download the Trek Accessory App and connect your smart phone and CarBack for added functionality and optimized connection and compatibility.
30-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.
Peruse 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.

What reviewers are saying.

“Trek’s new and improved city lights will keep you visible day or night when biking urban roads.”
No matter the type of riding I’m doing, my bike always has DRLs [Daytime Running Lights] attached and on. I can attest that DRLs have saved me from being hit more times than I care to count. They help drivers see me coming and better judge my oncoming speed so they don’t pull out in front of me.
roadbikerider.com · Read the review
“I found myself appreciating the audible 'beep' from my head unit more than expected.”
I have a soft spot for the Trek CarBack: its compact shape works well on small bikes with tight clearances…
escapecollective.com · Read the review
“Gear of the Year ”
...renowned rear bike light is mated to a radar sensor that’s capable of detecting vehicles way before they pass. CarBack has functioned superbly.
feedthehabit.com · Read the review
“CarBack is Flawless”
Comes highly recommended and performs at the top tier.
bikerumor.com · Read the review
“you can't go wrong with the CarBack”
CarBack is a solid product... it works just as well with a phone or a bike computer
“CarBack has functioned superbly”
Trek has combined their fantastic Flare rear light with a rear-sensing radar for a match made in heaven.
feedthehabit.com · Read the review