What size are F1 tires?
F1 tires use 13-inch wheels with front tires sized 305/670-13 and rear tires sized 405/670-13 (as used in contemporary seasons).
Formula One tires are supplied by Pirelli and are designed around a fixed wheel diameter of 13 inches. The front and rear tires differ in width, but both share the same 13-inch rim and a 67% aspect ratio (the last two digits, 70, indicate the proportional height relative to width). While the basic dimensions have stayed consistent across recent seasons, compounds and construction have evolved to influence grip and durability.
Standard tire dimensions used in recent seasons
Below are the two primary sizes that have been used on modern F1 cars, reflecting front and rear widths on a 13-inch rim.
- Front tires: 305/670-13
- Rear tires: 405/670-13
These dimensions mean a front tire width of 305 mm with a 67% sidewall, mounted on a 13-inch rim, and a rear tire width of 405 mm with a 67% sidewall, also on a 13-inch rim. The overall tire diameter is determined by these measurements and is roughly 738 mm at the front and 872 mm at the rear.
Seasonal considerations
Compounds and construction
Although the sizes stay the same, Pirelli periodically updates tire compounds and construction to adjust grip, durability, and degradation. In dry conditions, teams typically choose among multiple compound options, while wet or intermediate conditions require different compounds and tread behavior.
Summary: For modern Formula One, the standard tire sizes are front 305/670-13 and rear 405/670-13 on 13-inch rims, with seasonal variations in compounds rather than wheel or width dimensions. This configuration has shaped car design and strategy since the ongoing regulation period.
