Inexpensive four-lug-nut rims are available for sale in stores at Discount Tire locations and online at DiscountTire.com, and also online at Amazon.com, TireCrazy.com and eBay.com, as of 2015. Bolt patterns are specific to individual car manufacturers' hubs.
TireCrazy.com's selection includes a few four-bolt wheels, but the rim listings are unsorted, so shoppers need to sift through the inventory. Each listing shows the bolt pattern, size, offset and finish.
EBay's selection is larger and includes 15-, 16- and 17-inch wheels. Many of the large-diameter wheels fit luxury and sports cars. Users can refine the listings by bolt pattern.
Amazon.com carries many wheels from various manufacturers, including Konig, American Racing, Stance Wheels and XXR Wheels. It sells new and used wheels.