FORGED BILLET ALUMINUM WHEEL: 7-Valve CNC machined design Constructed from radial forged 6061-T6 aluminum Arlen Ness proprietary wheel forgings Detailed CNC machining from the edge of the rim to the center of the wheel hub Accepts Arlen Ness cartridge type hubs Structurally tested to meet or exceed DOT, JAS and TUV international load ratings Smooth rolled rim lip with CNC machined details Black anodized finish with CNC machined aluminum contrast CARTRIDGE TYPE HUB DESIGN: Features both wheel bearings pre-set in one hub for optimum radial and lateral runout accuracy Constructed from 6061-T6 aluminum CNC machined sculpted design for a detailed look and reduced weight Hub kits mount to Arlen Ness forged rims in minutes allowing for excellent flexibility for custom build/applications Compatible with ABS & Non-ABS models Proprietary fully sealed wheel bearings w/ ABS rings WHEEL SIZES & COMPONENTS: Front Wheel Sizes: 18" x 3.5" / 18" x 5.5" / 21" x 3.5" / 23" x 3.5" / 26" x 3.5" Rear Wheel Sizes: 17" x 6.25" / 18" x 3.5" / 18" x 5.5" Matching Brake Rotor Sizes: 11.5" / 11.8" / 14"