I have a K-Summit XL55 kit for my 2015 Toyota Sienna Limited with 235/55-18 tires (also fits SE 235/50-19). Must use these last weekend at 30 mile Tahoe Mtns. In my case (3) yellow links on each page had to be removed. It's easiest to use your own 3mm hex (I have a T-bar) and 7mm socket instead of the tools provided to remove the extra links. I used a 21mm eyelet and a smaller red spacer with the appropriate bolt size. You should test them on your tires on a dry road before you do it on snow. There are several videos on YouTube that explain how to mount them. A few tips to speed up the process: Bring a 17mm ratchet head to attach the red spacer 21mm lug cover to your existing wheel bolts. (It will not attach to the round anti-theft screw.) To install, take out the K-Summits and unfold them in an X. Slide them over the top and then the sides of the tires, making sure the silver pieces of The chain lies on the flat part of the tire. The top two shoulders of the X should be as close to the tire sidewall as possible. Try to get the two bottom plastic crossbars under the wheels as much as possible. You now attach the chains to the wheel eye. Locate the eyebolt hole closest to the K-Summit ratchet strap without twisting the strap. Take the 21mm K-Summit eyebolt and make sure it is fully seated in the wheel eyebolt hole before using the 17mm ratchet, then do your best to make sure it doesn't become loose solves. The arrow should point to the center of the wheel as you tighten the 17mm bolt. The final step is to tighten the fabric strap ratchet until you see a red line. A NOTICE. Judging by the various reviews I've read, it's not a good idea to turn this (stop at 90%), so I noticed that when I first saw the red line, it barely showed up, but when When I lift them up again, the red line was in the middle of the window. The more you spin, the more the tire's metal arms open as the center section is pulled towards the center of the wheel. That's why I stopped starting at the first sign of the red line. Repeat for the other side. Drive forward 100 feet to ensure that the tracks automatically cover the entire tire (flat road contact area) and that the plastic arms that curve around the edges of the tire make direct contact with the sidewalls as well as the top contact area. Tires. You may have to help push the chains to help with positioning - just to be sure. After that, drive at a speed of 30-40 miles per hour. Removal of K-frame tops is the reverse of installation. Make sure the K-Summit is in the X shape when you stop, not the + position, for easier chains removal. Once removed, the lower part of the chains will be under the bar. At this point I turned the car over to re-pack the tracks. It's smoother than traditional cables and expensive, but saves a lot of time installing and removing. If you prefer my right size car is the SZ429 which I had as a spare. The SZ429 Z-Chains require me to reach over and behind the tire to secure two attachment points (which gets my hands and jacket dirty) and another attachment point at the front of the bike before attaching the 6-plastic grommet tension cable fasten that might scratch the face of my wheel. K-Summits will NOT scratch or touch the wheel surface and are suitable for vehicles with low ground clearance. Because the K-Summits are mounted on the outside, there is no potential damage to the struts or brake lines, especially if your vehicle has sport or lowered suspension. This is a short term review and I didn't lose it which is why I'm giving it 4 stars. I spotted another VW Passat that had K-Summits installed, so it shows someone else trusts them to work. Although cheaper to find at auction. (Thule is now bought by Kรถnig, but they're still made in the same factory in Italy.)