Tires are consumable, expensive, safety-critical and almost entirely manageable. In heavy fleets they commonly rank third in operating cost behind fuel and driver wages, and the gap between a well-run and a neglected tire program is large.
What drives tire cost
Pressure. Under-inflation is the dominant cause of premature tire failure and of increased rolling resistance. Running significantly under the correct pressure measurably shortens tire life and increases fuel consumption. It is also invisible without measurement — a heavy vehicle tire can be substantially under-inflated and look normal.
Alignment. Misalignment causes irregular wear that can halve tire life. It is cheap to check and frequently neglected.
Driving style. Harsh acceleration, hard cornering and heavy braking accelerate wear substantially. This overlaps with driver behavior programs and is one of the clearest financial returns from them.
Load and specification. Wrong tire specification for the duty — load index, speed rating, tread pattern — causes both premature wear and safety risk.
Road surface and route type. Urban stop-start work with kerbing wears tires far faster than highway running.
Retread policy. Where casings are managed properly, retreading substantially reduces cost per kilometer in heavy fleets.
A cheaper tire with shorter life and higher rolling resistance costs more. Track removal mileage by brand, position and application, and compare on cost per kilometer including fuel effects.
Building a tire program
1. Pressure management.
- Defined pressures per axle and application, published and posted
- Regular checks with calibrated gauges, recorded
- Tire pressure monitoring systems on vehicles where the cost justifies it — increasingly standard in heavy fleets
- Nitrogen inflation where the operation supports it, primarily for pressure stability
2. Tread and condition inspection.
- Part of the daily walkaround check, with defects reportable through the app
- Formal measurement at defined intervals, recorded per position
- Removal at a policy depth above the legal minimum, so nothing runs illegal
3. Rotation and position management.
- Defined policy for moving tires between positions to even out wear
- Steer, drive and trailer positions have different wear characteristics and often different specifications
4. Casing management.
- Track casings individually where retreading is used
- Retread policy: how many times, at what condition, with which supplier
- Scrap analysis: why each casing was scrapped, which reveals systematic problems
5. Procurement.
- Framework agreements covering supply, fitting and roadside assistance
- Cost per kilometer comparison rather than unit price
- Emergency call-out terms and response times, which matter more than the tire price when a vehicle is stranded
Data to capture
| Data | Use |
|---|---|
| Fitment: tire, position, date, odometer | Life calculation |
| Removal: date, odometer, reason | Cost per km, failure analysis |
| Pressure checks | Compliance and correlation with failures |
| Tread measurements | Wear rate, forecasting |
| Casing history | Retread economics |
| Roadside call-outs | Failure cost and pattern |
Recording removal reason is what turns tire data into management information: regular wear, irregular wear, impact damage, puncture, sidewall damage, or age. A fleet with a high proportion of impact and kerbing damage has a driving or route problem, not a tire problem.
Safety and compliance
Tires are a leading cause of roadside prohibitions and a contributor to serious incidents. Requirements vary by jurisdiction, but consistently include minimum tread depth, condition free from specified damage, correct load and speed rating, and evidence of regular inspection.
Practical controls: daily walkaround checks that genuinely include tires, a defect process that takes a vehicle off the road for an unsafe tire without negotiation, and inspection records that survive an audit.
Where fleets lose money
- Running to the legal limit rather than a policy limit, producing prohibitions and roadside failures
- Ignoring pressure, the single largest controllable factor
- Buying on unit price without measuring life
- No casing tracking, so retread value is lost
- Untracked roadside call-outs, which are expensive and hide the true cost of tire failures
- No alignment program, producing irregular wear that is blamed on tire quality
Common questions
Are premium tires worth the extra cost?
Frequently in high-mileage applications, where longer life and lower rolling resistance more than offset the price. Less so in low-mileage urban work where tires are more likely to be removed for damage than for wear. Measure cost per kilometer in your own operation rather than assuming either way.
Is tire pressure monitoring worth fitting?
In heavy fleets and high-mileage operations, generally yes — under-inflation is common, costly and otherwise undetectable between checks. In low-mileage light fleets with disciplined checks, the case is weaker.
Should we retread?
In heavy fleets with good casing management, retreading meaningfully reduces cost per kilometer and is standard practice. It requires disciplined casing tracking and a reputable supplier; without both, the savings evaporate in scrapped casings.
How often should tires be checked?
Visual inspection daily as part of the walkaround, with formal pressure and tread measurement at defined intervals appropriate to your operation. The interval matters less than that the checks are genuinely performed and recorded.
What causes irregular wear?
Most commonly alignment, suspension wear, incorrect pressure or unbalanced loading. Irregular wear is a symptom, and replacing the tire without diagnosing the cause guarantees the new one wears the same way.
