The radial tyre: The Michelin innovation that revolutionized tyre construction

This depends on how you define a "normal tyre." As opposed to a bias-ply tyre, the construction of which features a crisscross pattern of cords running at angles, the radial tyre's internal ply cords are arranged at 90 degrees to the direction of travel. Michelin patented this innovation in 1946, revolutionizing the tyre industry.

Due to these differing constructions, a radial tyre had different performance benefits as compared to bias-ply tyres. Radial tyres typically offer better traction, fuel efficiency, and wear resistance due to their flexible sidewalls and efficient heat dissipation. They also provide a smoother ride and enhanced stability, making them ideal for long-distance hauling. Bias-ply tyres provide advantages in certain off-road conditions. 

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In usage, a radial tyre will have a bulging at the bottom of the sidewall, given its flexibility. In agricultural applications, you would also notice it compacting soil less, given its larger contact patch. Otherwise, Michelin radial tyres can be identified by the X® in the tyre name or by an R in the size: 11R22.5. A bias-ply tyre would have a hyphen in the size: 11L-15.

A radial tubeless tyre is characterized by its radial construction, as detailed on this page. As a tubeless tyre, it does not require an inner tube, instead utilizing an airtight seal that maintains air pressure within the tyre itself.

Radial tubeless tyres are commonly used across various vehicles, including passenger cars, trucks, agricultural equipment, and more, offering superior performance compared to tube tyre constructions.