This is my second set. I was very pleased with the first set which lasted 5 years. I replaced the kit because I changed tires. No failures! This set that you can actually see is of lower quality. What I see is that the screw on the rod is definitely cheaper now. Second, these wheels are NOT SUITABLE to model 19.5 wheels. The outer double extension is 2 inches too short. My old ones are longer and I can only think that while my rims are 19.5, they are a 22-24 inch model (8004). I didn't buy them. My imitation rims are made by the wheel manufacturer and this extension is made by the wheel manufacturer, but they do not work. Conclusion: you are fine. If you have wheels larger than 19 inches, think twice.