The ring nuts were very light. I did not expect this. We'll see how they hold up with SCCA SOLO. The main thing I wanted was a set of extra long hex nuts. No need to mess around with the key, it's easier to switch when you work with multiple people, it's easy to take. I bought them because they were the cheapest, I wasn't interested in the spikes and I haven't installed them and won't install them. Installation was apparently easy once you know how to change a tire or even undo a bolt. I would recommend her to a friend. If they don't work I will update but for now they work as expected.