What are PJ tyres, and why is mixing them with other types of tyres on the same axle not recommended?

PJ tyres are a specific type of tyre classified as steel-belted radial-ply. They have unique characteristics that set them apart from other types of tyres and include an emphasis on durability and performance while maintaining safety standards. This particular design is known for its enhanced ability to handle heavy loads and provide stability, making it ideal for vehicles with higher weight capacities or those used for commercial purposes.

While PJ tyres can be a suitable choice for specific applications, they are not recommended for mixing with other types of tyres on the same axle due to potential safety concerns and performance inconsistencies. Mixing different tyre types can lead to uneven wear patterns, reduced traction, and even compromise the overall handling and braking capabilities of the vehicle. This is because each type of tyre has distinct design features that optimize its performance within specific parameters; mixing them may result in suboptimal performance across all tyres simultaneously.

Therefore, it is generally advised to use tyres of the same type on a vehicle's axle for consistent performance and safety. If PJ tyres are worn out or no longer meet the required criteria, they should be replaced with conventional tyres to ensure optimal handling, braking, and overall vehicle performance.