What are rooftop carrier bars?
2079106
They are crossbars that run from side to side and mount to the main rails that attach to the vehicle. Attachments can be purchased and installed on the crossbars that allow for carrying specific cargo, i.e.: surfboards, bikes, skis, etc.
1728235
I haven't use them yet for any heavy duty stuff, just a couple canvas bags. The bars are strong metal with some sort of weatherproof coating. The end grips, that grip the roof rack, look pretty sturdy to me. Assembly was easy. If your boat is fibreglass it should be fine is my guess, but I'll defer to anyone with actual experience carrying one.
422844
It is everything you see... crossbars are permanently in the roof mounts. Your roof should have four blsck clips thay can be popped open in the roof rail. Crossbar mounts set over the top and accompanying screw screw rack down. Comes with instructions and simple tools.
1068320
I just looked on their website at their fitguide: https://cdn.shptrn.com/media/mfg/572/media_document/7975/SRGuide_short.pdf?1366740487 They don't seem to have any roofracks for your vehicle. Only storage boxes and bags. They have a note about those for your vehicle stating: Factory crossbars are required to fit boxes and bags to this vehicle. Please contact your auto manufacturer to purchase these crossbars.
552743
There are mounting bolts with threads under the plastic tabs on the roof . You just pop them off and screw into rack. Easy .
420543
This bag is wonderful and made for the rear carrier although it can be roof mounted. In general, you can count on a reduction of 2-4 mpg with such a large item on your roof. This isn't very streamlined like a hard top carrier.
1564912
Not sure I understand the question; however, there must be rails on the roof and the cross bars fit into those rails. They adjust along the rails according to luggage/cargo needs.
1158714
It all depends on where your roof rack crossbars are positioned and how far forward/aft you place the carrier.
1481444
Hi there, the 598 was designed specifically for Thule bars, but is also compatible with round bars. Unfortunately this model is not directly compatible with a factory installed crossbar. You can use this carrier along with the 532 Ride On Adapter to mount to your factory installed crossbars, or we would recommend the 594XT Sidearm carrier. Thanks!
1179419
We only used it for carrying pole vault poles which are not as heavy as a cargo carrier could get. A cargo carrier also will present more wind resistance and forces associated with that resistance as a function of how fast your are driving. I would consider installing a tow hitch followed by a metal basket that mounts in the tow hitch. This would be easier to load up and won't damage your roof.http://www.jcwhitney.com/curt-class-iii-receiver-hitchesfor-use-with-small-campers-boathorse-trailers/p2011910.jcwx?filterid=c2309d2171u0j1
815463
You don't need any bars or rails to use this. It's not mounted but just strapped on with straps running through inside the car along the roof. Hope that helps.
1549160
I am not sure, but my 2012 rails on the roof were equipped to hold the cargo carrier when I unscrews them and put them back on upside down. I had to send these racks back because I didn't need them.
1020073
I haven't seen one but maybe you could devise your own that could hook around the top and bottom bars. They're sturdy.
206861
Wish I could help, but I never received all the packages from Amazon and had to return it. Good luck, they looked like the best bars available.
1055138
I chose and use a Thule soft-sides cargo carrier, but you could use their hard shell cargo carriers as well. You have to attach the cargo carrier to the roof rack, of course. Hope this information about what I have done helps.
1094037
Inside the drip chanel moldings on the roof there should be four small access panels that lift up. That is where the bars mount to.
89177
This product rests on the top of the roof of your vehicle. You then hook the supplied straps to the ends of the bars and run them through your door openings on each side and connect and cinch the ends together inside your car or truck. I have found that the weight of the item you are carrying tends to hold it down pretty well. I use this product for 16-20 ft. long lumber. The racks on my canopy are not wide enough apart to catch the end of such long lumber so this rack makes it possible and keeps the wood from hitting my truck cab roof. Works well for light duty and infrequent use.