20 inch US Mag 1PC wheels bring the brand's classic American muscle and truck profiles up to a bold, fender-filling diameter, with the 20-inch fitments stocked here drawn from a deep one-piece lineup. These are cast aluminum monoblock designs spanning street machines, lowered C10s, and full-size trucks, and every set ships with free shipping with financing available through Affirm.
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Browse the full picture across the complete US Mag 1PC lineup, or stay on this page to see exactly which models, finishes, and bolt patterns land in the 20-inch class.
Why 20-inch US Mag 1PC wheels matter
Stepping up to a 20-inch diameter sharpens the stance of resto-mod builds and lifted or lowered trucks alike, giving more room for big brakes and a tighter sidewall-to-fender relationship. US Mags designs draw on vintage billet and five-spoke heritage updated with modern one-piece casting, so the visual character stays true to the classic look while the construction suits today's heavier platforms. If 20s feel too large for your build, the same families are also offered in 18-inch and 17-inch sizes, while 22-inch and 24-inch options push the look even larger.
Which models & finishes come in 20 inches
The 20-inch group is wide. Truck-and-SUV styling shows up in the U125 BOULEVARD and U126 BOULEVARD, plus the U116 HUSTLER and U118 HUSTLER. The U132 DESPERADO arrives in Chrome, while its siblings the U133 and U134 DESPERADO carry Anthracite Milled Diamond Cut and Silver Brushed Face Milled Diamond Cut treatments. Lip-style faces appear on the U138 SANTA CRUZ in Gloss Black with Diamond Cut Lip, the U139 SANTA CRUZ in Anthracite with Diamond Cut Lip, and the UC143 SCOTTSDALE in Silver with Diamond Cut Lip. The UC144 OBS wears a Fully Polished face, and the multi-size U130 BULLET and U131 BULLET, plus the U123 RAMBLER and U127 CTEN, all reach into 20s. Across the 20-inch and wider one-piece range you'll find chrome, black, silver, gray gun metal, and brushed looks.
Fitment coverage
Twenty-inch US Mag 1PC wheels are carried in 5x120.65 and 5x127 across most models, the classic GM passenger and light-truck patterns that suit C10s, Impalas, and similar rear-drive platforms. Several truck-oriented designs, including the Boulevards and Desperados, add 6x139.7 for six-lug trucks and SUVs, while the Bullet, Rambler, and several others also offer 5x114.3. The Boulevard pair is additionally offered as a BLANK undrilled blank for custom redrilling. Always confirm bolt pattern, offset, and backspacing against your specific vehicle before ordering.
How to choose
Start with your bolt pattern, then narrow by face style: open multi-spokes like the Desperado read cleaner on lowered cars, while the milled-lip Santa Cruz and Scottsdale add contrast on trucks. Pick a finish that fits maintenance appetite, since chrome and polished faces show more upkeep than gun metal or black. For a sense of pricing and proportions, see specific builds such as the U116 HUSTLER 5X127 20X8 Chrome Plated or the lower-cost U118 HUSTLER 20X8 Matte Gun Metal. Smaller examples from the same families, like the U117 RAMBLER Gloss Black Milled and the U120 ROADSTER Matte Gun Metal Machined, show how a design scales down if you decide a 20 is more than you need.
Frequently Asked Questions
Which US Mag 1PC models are available in 20 inches?
Twenty-inch fitments include the U116 and U118 Hustler, U125 and U126 Boulevard, U117, U121 and U123 Rambler, U127 and U129 CTEN, U130 and U131 Bullet, U132–U134 Desperado, U138–U140 Santa Cruz, UC143 Scottsdale, and UC144 OBS, among others.
What bolt patterns do 20-inch US Mag 1PC wheels use?
The 20-inch designs are carried in 5x120.65, 5x127, 5x114.3, and 6x139.7 depending on model, with the Boulevard offered as an undrilled blank for custom drilling.
Are 20-inch US Mag 1PC wheels one-piece?
Yes. Each of these models is a one-piece monoblock cast aluminum wheel, machined and finished as a single unit.