And for you lazy bastards here are some of the key points if you do not use links:


Mustangs and Other Rear Wheel Drive Cars

The popular Ford Mustang continues to be one of the prime movers in racing, and its proponents account for the single largest community of drag radial users. Many bracket racing classes are defined by tire width beginning at 8.5 inch. A popular set up is the 3.55 or 3.73 axle ratio combined with a 275/50R-15 (10.83 inch width, 25.83 inch height) or a 275/40R-17 (10.83 inch width, 25.66 inch height). These two sizes account for the great majority of the drag radials sold today. But RWD racers have a choice of drag radials as large as 345/55R-15 (13.58 inch width, 29.94 inch height) or 315/35R-17 (12.4 inch width, 25.68 inch height). See our Drag Radial Specifications table for height, width and other good information on most drag radial sizes.



Wheel Width Considerations


Many times people will buy a wider wheel because the closer the wheel width gets to 100% of the tire's section width, the better the traction—for drag radials or any performance tire. It also looks cool.

Let's say you have decided on a 15 inch set up with 205/55R-15 tires for your Honda Civic. In this case the tire's section width is virtually 8-inches (205mm/ 25.4 mm per inch = 8.07 inches). See Tire Size Formulas for this and other handy formulas about tire sizes. So, our goal is to pick a wheel width between 70% and 100% of the tire's 8-inch section width, the closer to 100%, the better for performance. 70% of 8 inches = 5.6 inches (most popular size in this range is 6 inches). At the high end, the most popular choice is either a 7.5 inch wide wheel (93.75%) or a 7 inch wide wheel (87.5%).

Keep these rules of thumb in mind when selecting your package and you won't be disappointed in performance.