This is a cast aluminum one piece Seven Star Mag Wheel. It has been heat treated for maximum strength, making the rim twice as strong as spoked wheels. Product Specs: Fits: Front & Rear 1973-1984 Harley-Davidson FL, FX Rear, or custom applications with tire size 500/510 x 16 Noted on the Original Box for Front and Rear Rim for Electra Glide, Rear Rim only for Super Glide but year is not specific Star Pattern Spokes In Original Box Five Bolt Pattern Stamped T 16 x 3.00 DOT Henry Abe (See Photos) Perfect alignment, no truing required. Certified air tight, run tubeless tires No adaptors or extra disc kits needed.