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4 Styles:
Aeroblade 43 Aeroblade 43"
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Thule Aeroblade Roof Rack Bars

by Thule
155 customer reviews
| 13 answered questions

About the Product

  • Stealthy and rugged, the low-gloss black powder coat finish carries the full Thule Lifetime Warranty
  • Wind Diffuser is a textured surface on the t-slot cover that disturbs the airflow better than a smooth surface, greatly reducing wing noise
  • Box Beam - The sophisticated Box Beam aluminum extrusion creates one of the strongest load bars in the market
  • Smart Slide - The Smart Slide is a measurement system providing a quick, no-hassle, tape measure-free foot installation
  • Swing Blade - The new Swing Blade end cap pivots open to allow full access to the t-slot for easy accessory installs
Custom Fit a Thule Rack to Your Car
Check out the Thule Fit Guide to discover Thule racks and carrier systems that fit your car, or shop Thule's full selection of racks, cargo boxes, luggage, snow chains, and more in the Thule Store on

Frequently Bought Together

  • Thule Aeroblade Roof Rack Bars
  • +
  • Thule 544 Lock Cylinders for Car Racks (4-Pack)
Total price: $239.94
Buy the selected items together

Special Offers and Product Promotions

Color: Black | Style: Aeroblade 43"

Product Description

Thule AeroBlade roof rack bars are advanced roof rack crossbars that feature dramatically reduced noise, superior strength, total safety and an attractive aerodynamic look. AeroBlades come 43", 47", 53", and 60" bar lengths. They are compatible with a variety of Thule rack feet, including Thule Rapid Traverse, Rapid Podium, Rapid Crossroad, Rapid Tracker, Rapid Aero (sold separately). Feet slide easily onto the bars via underbar slots, while a wide variety of accessories* slide onto the bars via slots along the top of the bar. The wing design of the bars and WindDiffuser strips at the top and covers for underbar slots, keep wind noise to a minimum, while BoxBeam aluminum extrusion construction provides strength and a light weight. Additional features include: tape measure-free installation, and pivoting SwingBlade end caps.

Thule AeroBlade roof rack bars installed on vehicle's rack feet
The silent, strong and safe load bar choice suitable for most Thule racks and rack accessories.* (Rack feet not included)
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Features Designed for Strength and Easy, Quiet Use

Quiet WindDiffuser Strips

WindDiffuser technology is a big part of the AeroBlade being one of the most quiet roof rack load bars on the market. Provided in strips that can be cut to fit around rack accessories, the textured WindDiffuser surface sits on the top-oriented T-slot cover of the AeroBlade load bars and disturbs the airflow better than a smooth surface, greatly reducing wing noise.

A crosssection of Thule AeroBlade roof rack bars showing its BoxBeam construction and WindDiffuser T-stripping
Quiet WindDiffuser stripping, and strong BoxBeam inner construction.
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An upper and lower view of a pair of Thule AeroBlade roof rack bars shown aide by side
Accessory and rack foot installation via upper and lower T-slots, and the SmartSlide system.
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A display of the range of movement possible with the SwingBlade end caps of the Thule AeroBlade roof rack bar
SwingBlade end caps that pivot open and closed.
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Strong BoxBeam Construction

The sophisticated BoxBeam aluminum extrusion construction of AeroBlades creates one of the strongest load bars in the market. Extrusion construction creates a fixed cross-section made up of separate compartments running the length of the forged aluminum bars. Compartments have separate load-bearing vertical sections that add support to load bars. This creates incredible strength within the bars, that is not compromised by the light aluminum construction. Using a vertical load test, the AeroBlade can sustain over 800 lbs. Of force.

Tape Measure-Free Installation with SmartSlide

The AeroBlade contains a measuring system/component known as a SmartSlide that allows for quick, no-hassle, tape measure-free installation on rack feet. The SmartSlide is a stiff, molded T-shaped strip with measurement increments etched into its upper surface. With it users can quickly make the simple measurements that may be needed when trimming the WindDiffuser and the additional T-strips used to cover the outer edge of the underbar slot once rack feet have been slid on. Covering these slots improves aerodynamics and noise diffusion as air flows over the AeroBlade. In addition, because the SmartSlide is designed to slide along the inner edge of the underbar slot to the mounting point of rack feet, the four SmartSlides included also cover these section's open slot. This minimizes the need to trim T-strips in the primary rack application, allows AeroBlades to more easily be used on multiple vehicles, and insures that a measuring device is always available.

Easy Access to T-slots with SwingBlade End Caps

Unlike the traditional end caps of some load bar systems that must be pulled off in order to gain access to accessory mounting T-slots, AeroBlade SwingBlade end caps (four included) pivot open and closed without being removed. This pivoting action allows full access to the T-slot for easy and fast accessory installs. It also ensures that misplacement of removed end caps is never an issue.

What's in the Box

  • Two AeroBlade load bars
  • Four SwingBlade end caps
  • Two WindDiffuser textured strips
  • Four SmartSlide strips
  • Two bottom of bar T-strips
  • Installation guide and warranty information

Limited Lifetime Warranty

Thule will warranty all Thule brand car rack systems and its accessories manufactured by Thule during the time that an original retail purchaser owns the product. This warranty terminates if a purchaser transfers the product to any other person. No warranty is given for defects caused by normal wear and tear, cosmetic rust, scratches, accidents, unlawful vehicle operation, or modification of, or any types of repair of a load carrier system other than those authorized by Thule.

About Thule

Thule was founded in 1942 by the Thulin family, when Eric Thulin, a true lover of the outdoors, put the Thule name on a pike trap he designed and began to sell in Scandinavia. It wasn't long before he added other practical items to the company's portfolio. By the 1960s, the company began to concentrate on car-related products, including its first roof rack. The Thulin family sold Thule to the publicly listed company Eldon in 1979, and it has continued to grow both organically and through acquisitions ever since. The Thule Group is a world leader in providing transport solutions for an active life.

* Note: The following products are not compatible with the AeroBlade: 503 Load Stops, 516 Prologue, 579XT Canoe Carrier, 558P Tandem Carrier, 597XT Hullavator, 847 Outrigger II, 870XT-873XT Fairings, 884 Roll Model.

Product Details

  • Product Dimensions: 47 x 4 x 3 inches ; 7 pounds
  • Shipping Weight: 7 pounds (View shipping rates and policies)
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B00GN8CZP6
  • Item model number: ARB47-PARENT
  • Average Customer Review: 4.0 out of 5 stars  See all reviews (155 customer reviews)
  • Amazon Best Sellers Rank: #16,514 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
  • Product Warranty: For warranty information about this product, please click here

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Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

81 of 86 people found the following review helpful By Walter Boyle on March 19, 2012
Style Name: Aeroblade 47"Color: Silver Verified Purchase
I just installed these on Friday and then spent 6 hours in my CR-V on Saturday. I had the square bars on before these and the difference was huge. Not only did the noise go down significantly but my gas mileage crept up a bit, too (only .3 MPG, but still). Easy to install and good looking. Only two drawbacks, and this is why they get 4 stars and not 5. The first is that with their silver color all the bugs you hit while driving show up. A little silly but it is noticeable. The second is regarding the use of roof racks. You will need to buy extra parts to mount any rack to these bars. They do not tell you this in the instructions or any where else. Thule has some of the worst documentation regarding this. I found REI to be very helpful in finding what i needed to actually secure my kayak racks, its a relatively cheap and easy fix but was major annoyance for 2 hours while I read online and researched the fix.
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37 of 40 people found the following review helpful By Jason S on January 4, 2013
Style Name: Aeroblade 53"Color: Silver Verified Purchase
First things first, use Thule's fit guide to get all of the items that you need: [...]
My wife pitched the idea of buying a car topper to free up room in our Ford Focus for an upcoming 11 hour car ride with 2 dogs. After a lot of research, paying closer attention to other vehicle racks around town, and trying to think of the best use of my money I settled on Thule (apparently pronounced "tool-ey"). The final selling point was the wide variety of products they sold that can be reused easily on other cars and with other products. For example, I could use the car topper and then use a bike rack, raft rack, or just the bar to transport plywood, etc.

I ended up purchasing the custom feet pack, aero bars, rapid traverse feet, locks, and cargo box. Although we spent several hundred dollars on everything if we wanted to use these products on our Scion all we have to do is buy the customer feet pack at ~$70. The custom feet pack come with the specific measurement and placement of the feet and bars. Follow the instructions and the install will go smoothly with some time. Once you have it figured out installing and remove the bar and box will take 2 minutes. During our trip we removed the cargo box and I was able to easily do it by myself in a few minutes. The entire setup survived a 22 hour round trip at highway speeds up to 80 mph. The box also sat in the rain overnight and went through rain on the road and the contents stayed dry. Setup stayed in place, tight and secure, and did not scratch the paint.
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12 of 12 people found the following review helpful By Sean Maddox on August 31, 2014
Style Name: Aeroblade 53"Color: Silver Verified Purchase
Before I get into my review of this fabulous roof rack, I want to point out a critical oversight many people may be making because it isn't mentioned anywhere in the manuals.

-> When you obtain the Fit Kit Rubber Foot Pads for your specific system, you'll notice the rubber foot pads aren't symmetrical squares. Instead, one side is taller and thicker and another side shorter and thinner on them. This is not mentioned anywhere in the manual, nor do they tell you why they do this. However, the reason they are designed this way is to contour to the slope in your car's roof, which could impact the systems grip to the car. So, when you install the system, you need to insure the rubber foot pad's thicker, longer side is on the downward slope of the contour and the thinner, shorter side is on the upward slope of the countor. This way the thicker side makes up for the downward slope and gives you max grip. Again, if they aren't fitting to the contours of the rooftop and leaving large gaps, you properly installed them backwards/wrong. IF YOU DON'T DO THIS IT CAN CAUSE A FAULTY INSTALLATION AND DETACHMENT OF THE SYSTEM MID DRIVE.
-> Each of the three parts will also include its own installation manual, which can be confusing since they repeat some information in each one. Even though their is repeat information, you need every single manual for measurements and proper installation of each part. DO NOT THROW AWAY OR IGNORE ANY OF THE MANUALS PROVIDED IN EACH PART FOR THE SYSTEM.
-> insure you follow the measurements down to the inch, as they are precisely tuned for each system and car to insure max performance. If you don't you may experience noises, poor performance, whistling, ect.
-> insure you cover all the openings fully with the tubing they provide.
Read more ›
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12 of 12 people found the following review helpful By Danny Ciocca on January 2, 2014
Verified Purchase
The Thule Aeroblades are a great design and look great on the top of my Subaru Legacy. I went through and researched a lot about the Thule car rack before I spent over $400 for the complete rack. My best advice when buying a Thule rack is GO TO THE THULE.COM WEBSITE AND PUT IN YOUR VEHICLE INFORMATION TO DETERMINE ALL OF THE PRODUCTS YOU NEED!!! I went piece by piece between the blades, foot pack, foot pack secure kit, and the cylinder locks to protect the $400 investment. Be careful which secure kit and which foot pack you buy. Each is unique depending on which vehicle you have and if your vehicle has a roof rack or not. My Subaru does not have anything on the roof so I had to buy everything. Also be careful with the type of accessories you buy: ski rack, bike rack, canoe rack, etc. The Aeroblades are a newer design so make sure the accessories are made for the particular rack. has an instruction video on how to install the complete rack and the foot pack will have the specs on how far the racks should be apart. Luckily Amazon is great about returning items but try them asap so you don't get stuck with a product that you mistakenly ordered. Amazon is a little cheaper than the Thule site so you can save some money here.
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Thule ARB43B AeroBlade Load Bar, Black, 43-Inch
This item: Thule ARB43B AeroBlade Load Bar, Black, 43-Inch
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