Steer Axle Truck Tyre
Rib-pattern radial for front axles, built for directional stability and even wear under a steering load. The axle where operators least often economise, because irregular wear here is felt in the cab.
Features
- Four or five continuous circumferential ribs to hold a line without wandering at motorway speed.
- Reinforced shoulder to resist the scrubbing that kerbing and tight manoeuvring cause.
- Casing designed for regrooving where the pattern carries the marking, adding usable depth before removal.
- Stone ejectors in the groove base on patterns intended for mixed on and off road duty.
- Even wear depends on correct geometry; a steer tyre wearing on one shoulder is reporting a tracking fault, not a tyre fault.
Specifications
| Figure | Typical range | Unit | Why it matters |
|---|---|---|---|
| Size designation | 315/70 R 22.5 | Fitment to rim and clearance in the arch | |
| Load index, single | 154 - 156 | Front axle loads are concentrated on two tyres | |
| Tread depth, new | 13 - 16 | mm | Usable life before the legal minimum |
| Regroovable | yes / no | Recovers depth on a sound casing | |
| Wet grip class | A - C | Steering response on wet roads | |
| Inflation pressure, cold | 8.0 - 8.5 | bar | Directly affects shoulder wear rate |