For our beater ’97 TJ we asked OMF to maximize weight savings and strength. The solution is these lightweight pocketed inner rings. Our Welds gained only 4 lbs each with the beadlock conversion. OMF charges $225 per wheel for a basic conversion. The uber-lightweight inner rings are an additional $25. Some beadlocks simply drill and tap the aluminum. If the threads get damaged your expensive wheels are basically junk, but note the replaceable steel inserts of the OMF product. If the threads get damaged, you can easily replace them. Also, the aluminum can be machined with little knurls that help grab the tires bead.