I work in a metal/machine shop. Although I am not knocking on Spidertrax quality, metal is metal. It is being made in almost the same machine, Spidertrax can and will sell their products for more money because of the people above this post. They are a well-known brand that has been around for years. BUT when it comes down to spacers, to me it is the same. It is just a person manning the CNC Machine after they input the data, not the actual person doing the work. BUT I will have you make sure the quality of the metal they use is the same, ie. 6061-T6 Aluminum with Grade 8 or 10 Bolts, and of course making sure it is hub-centric. Yeah, I’ve heard people using spacers that aren’t Spidertax having them fail on them, but I believe it is the end-user fault for not installing it correctly. I’ve even heard Spidertrax failing as well, again end-users fault. Just torque down the spacers to the hub 85lbs, and 80lbs wheels to spacers, and recheck after 80-100 miles of driving. After that, you are golden, and make it a habit to check every oil change when you’re rotating your tires. Also, FYI, I am using the ebay spacers on now. No problems here.
Trust me, I solely believe in you get what you pay for, but when it comes to a somethings that a machine makes and not an actual person, I feel a little different. I am not saying all machine work is the same though.
I daily my car as well.