Radial Tyres for Trucks

How truck tyres shifted from bias (crossply) tyres to radial tyres that last longer and save fuel, and why this required big investments by tyre makers.

Truck tyres shifted to radials.

Bias vs radial

Bias (crossply) tyres have layers crossing at angles.
Radial tyres have cords running straight across, giving better grip, longer life and fuel savings.

Cars first

Car tyres became almost entirely radial earlier.

Trucks

Truck radialisation rose steadily over the 2010s.

Why slower for trucks

Radials cost more upfront.
Poor roads and overloading damaged radials.

Better roads

Highways made radials more practical.

Investment

Tyre makers invested heavily in radial plants.

The fuel saving

A trucker switches to radials and saves fuel over long highway trips.

Thinking all tyres are the same inside

Radial and bias tyres differ.

Key takeaways

Radials last longer and save fuel.
Car tyres went radial first.
Truck radialisation rose over time.
Better highways helped.