305/40 R20 H

The Sonix Winterxpro 999 in size 305/40 R20 112H is a passenger car tyre designed to fit wheels with a 20-inch rim diameter. With a section width of 305mm and a sidewall height of approximately 122mm (40% 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 112, meaning each tyre is rated to support up to 1120kg at the maximum permitted speed. The speed rating is H, certifying the tyre for use at sustained speeds of up to 210km/h (130mph). Always ensure replacement tyres meet or exceed your vehicle manufacturer's recommended load and speed ratings.

According to the EU tyre label, the Winterxpro 999 305/40 R20 112H is rated for fuel efficiency at class C — good fuel efficiency, balancing economy with performance, for wet grip at class D — moderate wet grip with longer braking distances on wet surfaces, with an external rolling noise level of 71 decibels (class 2). These standardised ratings make it easy to compare tyres on the factors that matter most for safety and running costs.

Designed for winter driving, this tyre offers enhanced grip in cold, wet, and snowy conditions, with a tread compound that stays flexible at low temperatures. The Extra Load (XL) construction strengthens the sidewalls to support heavier vehicles or increased payloads.

Tyres.Online compares Sonix Winterxpro 999 305/40 R20 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.