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The flush design keeps the crossbars tight to the roofline for a smooth, factory-style finish. Nothing sticks past the raised rail feet, so the rack blends in neatly and keeps a low profile. The 41" bars sit close to the roof, giving your setup a clean, integrated look that feels built-in rather than bolted on.
When you’re on the highway, noisy wind can make long drives tiring. The aero-style aluminum crossbars help reduce drag and cut down on that sound. The split rubber strips in the top channels close back around your accessories after you slide them in, sealing off gaps that usually cause whistling and vibration. The result is a quieter ride that feels calm and steady even at higher speeds.
These bars make it easy to bring your favorite gear along. They’re compatible with most bike racks, watersport carriers, snow attachments, and cargo boxes that either mount in the top channels or clamp around the bars. Whether you’re hauling kayaks to the lake or loading up a rooftop box for a road trip, this rack gives you flexible options for every season’s adventure.
Some crossbars make you trim rubber inserts before mounting accessories. With these split strips, you just slide your gear into the track—no cutting required. The strips flex open as you mount and close around your equipment to keep things tight and weather-resistant. That means less prep work and a cleaner finish every time you change out attachments.
You can add Thule One-Key System locks for extra peace of mind. These locks secure both the rack and any channel-mounted gear with one key, keeping everything safe when you step away from your vehicle at a campsite or trailhead. It’s an easy way to make sure your setup stays right where you left it.
Ratings & Reviews

Jenny N.
3/15/2023
I agree with you that the rack should include the keys however Thule only offers the one lock system separately as part # TH450400 for a 4 pack. They do it this way so that if you have other Thule accessories like a Thule kayak or bike carrier then you can have the option of ordering enough keys to swap them all out to key them the same. For example you can also buy a six part part # TH450600 or an eight pack like part # TH450800.

Victoria H.
3/20/2025
That's impressive Clare! Its always nice when install is a breeze. What are you planning on mounting on your roof rack?
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Gwendolyn Y.
1/8/2026
Congrats on your new Benz! Sounds like a fun and exciting Christmas morning. I'm only slightly jealous of that tandem bike, I've always wanted to ride one.