Trek CarBack Radar Rear Bike Light

Overview

Know what's coming

The CarBack radar and rear light pairs with your smartphone or GPS cycling computer to alert you to detected vehicles and help you stand out on the road. With a simple mount that’s compatible with aero seatposts, a visible battery gauge, a compact profile and industry-leading visibility, CarBack is an easy choice for anyone looking to ride more confidently on shared roads.

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Planet Earth is our home and our responsibility – we must do our part to preserve it. Learn how you can join the #GoByBike movement and help make a difference in the future of our planet and all who call it home.

There's a lot more to Trek than making the world's best bikes and cycling gear. Learn more about everything Trek is doing to make the cycling space safer and more inclusive, plus a whole lot more fun.

Features

Enjoy best-in-class visibility with an interruptive flash pattern that’s daytime-visible from up to 2 km away.

CarBack Radar can detect rear approaching vehicles from up to 240 m away.

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A four-bar LED battery gauge makes it easy to read your battery status.

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An IPX7 waterproof rating helps ensure trouble-free operation in all conditions, and the USB-C port makes it quick and easy to charge.

A smaller profile makes it easier to mount CarBack on smaller frames and with saddle bags.

CarBack pairs with most major cycling computers, so you can use it with the GPS head unit you already have.

ANT+ compatible devices

Connect CarBack to your phone through the Trek Accessory App, which will let you see the position of oncoming cars in real time or get audio alerts from your pocket.

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A single light that helps drivers see the rider from further away and helps riders get advance notice of approaching cars equals more confidence on the road with fewer surprises.

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.

Learn more

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.

Learn more

Specs

Battery	Li-Poly 3.7Vdc 2000mAh 7.4Wh
Milliampere-hour (mAh)	2000mAh
Rechargeable	USB-C
Charge time	4 hours
Dimensions	70 L x 50 W x 25 H (mm)
Waterproof Rating	IPX7
Wireless compatibility	ANT+ / Bluetooth
Blendr compatible	Yes
Weight	87g

Sizing Service

Reviews

More options

Go By Bike

Responsibility

Helps drivers see you

Helps you see cars

Visible battery gauge

Waterproof USB-C charging port

Compact design

Universal ANT+ connectivity

Smart phone compatible

Be seen, and see what’s coming

30-Day Unconditional Guarantee

Peruse the product manual

More options

Go By Bike

Responsibility

Product features

Helps drivers see you

Helps you see cars

Visible battery gauge

Waterproof USB-C charging port

Compact design

Universal ANT+ connectivity

Smart phone compatible

Be seen, and see what’s coming

30-Day Unconditional Guarantee

Peruse the product manual