Tyres FAQ: Why do tyres have wire in them?

By Marc Abbott -

Tyres

 12 August 2009 17:13

The high-tensile steel wire is also known as the bead and runs circumferationally around the inner part of the tyre.

Its job is to anchor the tyre on the rim so that the tyre can't creep on the wheel and also help to make it airtight. It's the reason why tyres are so hard to get onto the rim and seated corrected.