Have had them for almost a year now. Just took the tires off. Wheel bolts in wheel spacers suck. soft metal One bolt broke, the threads of the rest stretched. I used a torque wrench. I only had these on the rear tires. Front spacers were a different brand and had no problems. You can't just go to the auto parts store to buy the right studs to fix the broken ones. Connects to a durable backbone for replacement cleats.