← Critical Product/Equipment/Process: Industrials, Auto & Infrastructure (all topics)
Radialisation
What it is
The shift from cross-ply (bias) tyres, where fabric plies run diagonally, to radial construction, where cords run perpendicular to the direction of travel under a stiff steel belt
Radials last longer, run cooler, deliver better fuel efficiency and are retreadable more times. Passenger vehicles radialised decades ago; the commercial vehicle segment is the segment still converting
Impact on industries
- Raises realisation per tyre structurally - a radial commands a higher price than a bias tyre for the same wheel position, so mix shift lifts revenue without volume growth
- Capital intensity is the barrier and therefore the moat - radial lines cost far more than bias capacity, which excludes small and unorganised manufacturers
- The heavy capex was committed years before demand arrived, and imported TBR flooding the replacement market undercut the returns on that investment
- The conversion is largely complete in passenger and increasingly in truck and bus, so radialisation is a maturing driver rather than a fresh one