Truck steer tyres, designed exclusively for the front axle, shoulder the responsibility of navigating the vehicle, demanding exceptional handling for precise and effortless steering. They must excel in resisting aquaplaning, efficiently dispersing water on wet surfaces. They are crucial as the initial contact to the tarmac ensuring comfortability when driving.

The primary role of your truck's drive tyres is to convert engine power into forward motion, achieved through a specifically designed tread pattern for optimal traction. These tyres endure considerable braking stress, demanding a robust grip to minimise braking distances. The ability to withstand high load ratings is crucial, as drive axle tyres typically bear the heaviest axle load during road travel.

The trailer tyres on a truck are engineered to manage both static and dynamic loads, with an emphasis on optimising mileage and fuel efficiency. They must also guard against scrubbing, a condition that can lead to fast and irregular tyre wear. If such wear occurs, it could necessitate replacing the tyres earlier than anticipated.

The ideal pressure for a truck tyre relies on its type, size, and the vehicle it's fitted on. Generally, the recommended pressure falls within 8 to 9 bar, with a range of 7 to 9 bar for a 22.5-inch tyre. Incorrect pressure not only poses risks but also increases tyre wear. Conversely, maintaining the correct pressure provides advantages such as fuel efficiency, improved safety, and extended lifespan.

Minimum tread depth regulations for truck tyres in England is 1mm. It is recommended to maintain a tread depth exceeding 1.6mm. The 'Tread Wear Indicator' (TWI) on the tyre's tread serves as a gauge; contact with the road indicates the tyre has worn down to the minimum tread depth. Going below the minimum tread depth is dangerous and can cause the tyre to blow out.

Slicing or regrooving tyres, commonly known as retreading, is strictly forbidden for car tyres due to safety reasons. However, it is permitted for truck tyres, indicated by a 'Regroovable' label or the 'U' symbol on the sidewall. Regrooving offers advantages for truck tyres, including extended lifespan, with regrooved tyres lasting up to 25% longer. This translates to fewer replacements, resulting in substantial cost savings for truck owners.

The suspension system of heavy-duty vehicles wears over time, especially with regular use. Truck alignment involves adjusting the suspension system connected to the wheels, ensuring proper travel and pivoting. It focuses on aligning axles and tyres, ensuring a straight orientation. Proper alignment prevents irregular tyre wear, promotes cost efficiency by extending tyre lifespan, improves performance, and benefits drivers by reducing fatigue caused by misalignment.