Race Grid Guide

2026 rules · Updated for 2026

What changed about F1 tyres in 2026

Formula 1 keeps 18-inch wheels while reducing tyre width for the smaller car concept.

Five Formula 1 slick and wet-weather tyre sets displayed in a row
Formula 1 tyre sets at the F1 Exhibition in London. Photo by Hullian111 via Wikimedia Commons, licensed under CC BY-SA 4.0. Responsive display crop only. All image credits →

Quick answer

The 18-inch wheel diameter remains, but the front and rear tyres become narrower. The goal is to cut weight and aerodynamic disturbance with minimal loss of usable grip.

01

Why narrower tyres

Tyres are heavy rotating components and major airflow obstacles. Reducing their width supports the lighter, narrower vehicle concept.

02

Grip is not just width

Construction, compound, load and temperature all shape available grip. A narrower tyre does not translate directly into the same percentage loss in cornering performance.

03

What viewers will still see

Warm-up, degradation, graining, overheating and strategic compound choices remain central to a race weekend.

Primary references

Rules change. These controlling sources take priority over this explainer.