... 6061-T6 Production process:Forging,CNC,HIGH QUALITY thickness: customization Wheel adaptermaterial: Aluminum alloy 6061-T6Production process: Forging, CNC, HIGH ... rims with different offsets and lug nut holes Bolt onto hub, and rim then bolts to adapter The adapters are made ... the adapter to which the rims are bolted onto aluminum hub centric ring.Material Aluminum/Alloy thickness: 1", 1.25", ...