GM Shows Off Sleek New Wheels at SEMA

20-inch wheel collection for Sierra and Silverado

GM introduced a collection of new 20-inch wheels at the 2003 Specialty Equipment Manufacturer's Association (SEMA) trade show, General Motors announced its collection of all-new 20-inch wheels. The wheels are designed for Chevy Silverado and GMC Sierra full-size pickups.

The 20-inch forged and cast aluminum wheels will be available in polished, chrome and machine-painted finishes. They were tested at GM's Milford and Mesa proving grounds and with mathematical modeling.

How The Wheels are Made
GM's wheels begin with a one-piece, aluminum ingot that's machined into several designs. A forging process aligns the metal grain so it flows along the contours of the wheel for maximum strength and fatigue resistance. After forging, each wheel is heat-treated for strength and hardness.

More Coming
GM says we can expect to see more 20-inch and larger wheels for GM cars and trucks coming in 2004. You can purchase the wheels from any GM dealership.