
If you're upgrading an older Mustang to 19s (say from 16s or 17s), you start messing with your speedometer readings. 19 Inch: Higher end 2010-2014 Mustangs will feature 19s, think GTs and Shelbys, and all S550 Mustangs wheels will be 19s whether optional or standard.
More often than not you'll be upgrading your existing 18s unless you're after Shelby or Performance Pack level performance and looks. That being said, once you hit 2006 and newer, 18s are commonplace. 18 Inch: 18s didn't come standard on Mustangs until the Saleen Mustangs in 1995.
17s are ideal for road courses or just to have a nicer set of rims until you get into the newer generation Mustangs (2000 ). If you're upgrading to 17s from 16s you will experience better handling without changing the ride quality.
17 Inch: This size comes on 5-lug Foxbodies, 1994-2000 GTs and Cobras, most 2000-2009 Mustangs, and base model S197s and S550s. Purchasing these wheels will give you the same handling and ride quality you already have, but if you have a later model Mustang with 15 inch or even 14 inch rims originally, 16 inch wheels will give you a slight bump in handling performance, but ride quality might suffer. 16 Inch: These rims are the standard stock size rim on some Foxbody, 1994-2000 GTs, and 2001-2004 base model as well as convertible Mustangs. For more information on tires in general, click here. To see a list of tire sizes that fit on stock wheels check out the chart below. As long as you purchase a rim meant for your year Mustang, it will fit. One of the questions we get most often is: what size wheel will fit my car? It’s a good question to ask, and all of the wheels we carry are made specifically for Mustangs. Performance Differences Between Name Brand and Reproduction Wheels?. Are Mustang Reproduction Style Wheels Worth Buying?. Are Authentic/High-End Mustang Wheels Worth the Cost?. What Wheels are Best for Autocross & Track Use?. How Do Larger Wheels and Tires Affect My Speedo?. What is a Staggered Mustang Wheel Setup?. How Low Can I Drop My Car with Larger Wheels?. Why Can't I Fit a 10 Inch or 10.5 Inch Rim on the Front of a Mustang?. Mustang Wheel Compatibility Across the Years. Chart: Stock Mustang Wheel Sizes by Year.