245/45 R18 W

The Michelin Primacy 4 in size 245/45 R18 100W is a passenger car tyre designed to fit wheels with a 18-inch rim diameter. With a section width of 245mm and a sidewall height of approximately 110mm (45% of the section width), this size offers a balance of handling response, ride comfort, and grip suited to a wide range of vehicles.

This tyre carries a load index of 100, meaning each tyre is rated to support up to 800kg at the maximum permitted speed. The speed rating is W, certifying the tyre for use at sustained speeds of up to 270km/h (168mph). Always ensure replacement tyres meet or exceed your vehicle manufacturer's recommended load and speed ratings.

According to the EU tyre label, the Primacy 4 245/45 R18 100W is rated for fuel efficiency at class B — excellent fuel efficiency, offering strong economy on longer journeys, for wet grip at class A — the shortest possible wet braking distances for maximum safety in rain, with an external rolling noise level of 70 decibels. These standardised ratings make it easy to compare tyres on the factors that matter most for safety and running costs.

This tyre is suited to everyday driving across a variety of UK road conditions, offering dependable grip, comfortable cruising, and balanced handling.

Tyres.Online compares Michelin Primacy 4 245/45 R18 prices from leading UK retailers in real time, so you can find the best deal without manually checking each website. Use the price history chart and current price table on this page to spot trends and save on your next set of tyres for your vehicle.