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.

Watch video

"Comes highly recommended and performs at the top tier."

Learn more

"Trek has combined their fantastic Flare rear light with a rear-sensing radar for a match made in heaven."

Learn more

"CarBack is a solid product... it works just as well with a phone or a bike computer"

if (typeof dataLayer !== "undefined") { dataLayer.push({ "ecommerce": { "currency": "", "impressions": [ { "id": "41448", "name": "Trek Flare RT Rear Bike Light", "price": "", "brand": "Trek", "category": "Bike lights", "variant": "black", "list": "More Options", "position": 1 } , { "id": "30763", "name": "Bontrager Ion Comp R/Flare R City Bike Light Set", "price": "", "brand": "Bontrager", "category": "Bike lights", "variant": "grey", "list": "More Options", "position": 2 } , { "id": "44445", "name": "Trek Flare R Metro Rear Bike Light", "price": "", "brand": "Trek", "category": "Bike lights", "variant": "black", "list": "More Options", "position": 3 } , { "id": "31073", "name": "Bontrager Lync Flare Saddle Mount Focus-beam Rear Light", "price": "", "brand": "Trek", "category": "Bike lights", "variant": "red_black", "list": "More Options", "position": 4 } , { "id": "32184", "name": "Bontrager Lync Flare Wide Beam Mudguard Mount Rear Bike Light", "price": "", "brand": "Trek", "category": "Bike lights", "variant": "black_red", "list": "More Options", "position": 5 } , { "id": "36235", "name": "Electra Townie Go! 7D & Cruiser Go! Light Kit", "price": "", "brand": "Electra", "category": "Bike lights", "variant": "black", "list": "More Options", "position": 6 } , { "id": "27117", "name": "Bontrager Lync Flare Saddle Mount Wide-beam Rear Light", "price": "", "brand": "Trek", "category": "Bike lights", "variant": "red_black", "list": "More Options", "position": 7 } , { "id": "27463", "name": "Trek Domane+ Rear Bike Light", "price": "", "brand": "Trek", "category": "Bike lights", "variant": "black", "list": "More Options", "position": 8 } , { "id": "41441", "name": "Trek Flare R City Rear Bike Light", "price": "", "brand": "Trek", "category": "Bike lights", "variant": "black", "list": "More Options", "position": 9 } , { "id": "32185", "name": "Bontrager Lync Flare Focus Beam Mudguard Mount Rear Bike Light", "price": "", "brand": "Trek", "category": "Bike lights", "variant": "black_red", "list": "More Options", "position": 10 } , { "id": "40233", "name": "Electra Rear Rack Mounted Bike Light", "price": "", "brand": "Electra", "category": "Bike lights", "variant": "black", "list": "More Options", "position": 11 } , { "id": "28142", "name": "Electra Pixeo XD Dynamo Mudguard Mount 2800 mm Rear Bike Light", "price": "", "brand": "Electra", "category": "Bike lights", "variant": "red_black", "list": "More Options", "position": 12 } , { "id": "44825", "name": "Spanninga Pimento XDvS Dynamo Rear Bike Light", "price": "", "brand": "Spanninga", "category": "Bike lights", "variant": "black_reddark", "list": "More Options", "position": 13 } , { "id": "25656", "name": "Electra Nr.9 XE E-bike Rear Bike Light", "price": "", "brand": "Electra", "category": "Bike lights", "variant": "black_red", "list": "More Options", "position": 14 } , { "id": "31092", "name": "Spanninga Presto EX Guard E-bike Rear Bike Light", "price": "", "brand": "Electra", "category": "Bike lights", "variant": "black_red", "list": "More Options", "position": 15 } , { "id": "40232", "name": "Electra Rear Fender Bike Light", "price": "", "brand": "Electra", "category": "Bike lights", "variant": "black", "list": "More Options", "position": 16 } , { "id": "33562", "name": "Electra Safety Rear Bike Light", "price": "", "brand": "Electra", "category": "Bike lights", "variant": "greylight", "list": "More Options", "position": 17 } , { "id": "40460", "name": "TRELOCK Duo Flat E-bike Rear Light", "price": "", "brand": "Trelock", "category": "Bike lights", "variant": "reddark_white", "list": "More Options", "position": 18 } , { "id": "44822", "name": "Spanninga Pimento RR 02 Rear Light Reflector", "price": "", "brand": "Spanninga", "category": "Bike lights", "variant": "reddark", "list": "More Options", "position": 19 } , { "id": "44824", "name": "Spanninga Pimento XE 50 Rear E-bike Light", "price": "", "brand": "Spanninga", "category": "Bike lights", "variant": "black_reddark", "list": "More Options", "position": 20 } ] } }); } else { console.log("dataLayer"); }

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.

Watch the video

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

Learn more

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.

Watch the video

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.

Download the Trek Accessory App and connect your smart phone and CarBack for added functionality and optimised connection and compatibility.

Get the app

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

"CarBack is Flawless"

"CarBack has functioned superbly"

"you can't go wrong with the CarBack"

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

Easy firmware updates

30-Day Unconditional Guarantee

Peruse the product manual

"CarBack is Flawless"

"CarBack has functioned superbly"

"you can't go wrong with the CarBack"

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

Easy firmware updates

30-Day Unconditional Guarantee

Peruse the product manual