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Automotive glossary

Crossply Tyre (Bias-Ply Tyre)

A crossply tyre has its body cords laid diagonally in crossing layers, the construction used before radial tyres became standard.

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What is Crossply Tyre (Bias-Ply Tyre)?

Many pre-1970s classics were designed for crossply tyres. They give a different steering feel and less grip than radials. They are still made for classic and vintage cars. Crossply tyres can develop flat spots after standing and feel lumpy for the first few kilometres.

How it works

Diagonal plies cross each other, so the sidewall and tread flex together.

Why it matters for your car

Do not mix crossply and radial tyres on the same axle. Switching to radials can change handling and may need suspension checks.

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