In addition to looping the synch down straps around the factory rack, I run them through the rigging on my boat deck and through the bottom part of the "J bend/brackett" of the rack to get to the factory roof rack. I figure that this way if the Thule rack does give away at least it and the boat have a better chance staying with the truck longer until I can pull over. I hope this helps, overall I think the rack is really a good affordable option that requires some added attention and caution when using but overall it is well worth the money.
Less physically strong riders may find its heft a bit much. There are wheels to roll it on flat surfaces, but you wouldn't want to carry it very far. It locks securely to your tow hitch and carries up to three bikes. The bikes are held in place with ratchet straps round the bottom of the wheels and a clamp for the top tube or, for carbon bikes, one of Thule's 982 frame adapters.
One year ago, I purchased my Thule rack with four H2GO saddles to support my two sit-on-top kayaks. So far 3 out of the four rubber saddles have torn where the pin that passes through the rubber and attaches to the plastic. Even though Thule has graciously replaced them, I feel the H2GO saddles are poorly designed. Thule has replaced my saddles with their new SET2GO saddles.
The rear strap design now requires the strap to go at an angle rather than directly over the wheel (as with previous Thule rack models). Make sure that you twist the strap clasp lock as well so it points to about 2 o’clock. I’m not entirely sure why this aspect of the design was changed as the straight-through strap always seemed fine to me and was more easily stowed away.
After reading the reviews here by some users who had issues with the older clamps, I contacted Thule support and they offered to send me a set of new metal hardware at no charge. The support rep. said that most of the problems with older design were probably caused by non-use of bow and stern tie downs, and strongly recommended doing this, even with the updated mounting plates. A few weeks later I received the plates, installed them, and everything seems to be solid but I think I'll still be using tie downs just to be on the safe side. Just noticed Yakima is now making racks similar to the Hull A Ports and also recommend securing the bow and stern. Guess they're playing "C-Y-A", too.
Our roof bike racks are tested extensively in the Thule Test Center™ – a state-of-the-art facility for testing bike roof racks to the limit and beyond. They are also designed for maximum ease of use with many smart features added during development. You can be confident that your roof bike rack will carry your bike safely and securely wherever you want to go. And you’ll be in the saddle as quickly and easily as possible.
Be careful with Wingbar Edge. They are supposed to be quieter than 961 bars + 753 foot pack but they are probably not. I both wingbar edge for BMW 5er Touring, with 4022 kit. Plastic cover, covering foot and kit (and securing the rack with the lock) does not fit tight, there is a 2-3mm slot. I suppose this is a reason of whistling, with high frequencies. With box on roof rack I was not hearing that, there was heavy noise coming from the box. After removing the box whistling was so annoying that I removed front bar from the roof on the gas station – I was not able to drive with it on the roof!
On your car roof, one these 3 alternatives will most likely be possible: a bracket specific to your roof shape that clips into the door frame: attachments for a dealer installed roof rail; OR a T-track. This review assumes that you have already figured out how to get two roof bars on your car roof – and that can be somewhat convoluted if you have an unusual car, good luck!
By selecting your vehicle details from our Thule roof bar guide you will be given a selection of alternative Thule roof rack systems that will be perfect for your car. If required, in most cases, you will be able to match locks to existing Thule equipment. Our guide also gives you the opportunity to download and view pdf fitting instructions and view demonstration videos.