In the UAE, a 12.00R20 marking indicates a heavy-duty truck tyre where '12.00' is the tyre width in inches, 'R' stands for Radial construction, and '20' is the rim diameter in inches. This sizing is standard for rigid trucks and trailers operating on routes like the E11 Dubai-Abu Dhabi highway or serving Jebel Ali Port. The 'R' for radial is crucial for the durability needed on long hauls in high summer temperatures, offering better sidewall flexibility and heat dissipation compared to older bias-ply tyres. For a typical GCC-spec Volvo FH or Mercedes Actros in a fleet, the total cost of ownership (TCO) for these tyres is significant. A key calculation for fleet managers is the cost per kilometer, which includes purchase price, repairs, and lifespan. For example, a set of six 12.00R20 tyres might cost around 6,000 AED. If each tyre lasts approximately 80,000 km under normal UAE highway conditions (factoring in heat and load), the depreciation per tyre is about 0.075 AED/km. Adding maintenance and the fact that RTA Dubai mandates a minimum tread depth of 1.5mm for heavy vehicles (not 1.6mm as for light vehicles), the real running cost per km for tyres alone can approach 0.10-0.12 AED. This is a critical figure for logistics companies, as highlighted in operational cost analyses referenced by the UAE Ministry of Energy and Infrastructure. The MOI UAE also enforces strict standards on tyre condition during annual heavy vehicle inspections, where any damage or insufficient tread leads to immediate failure.
- Tyre Width: 12.00 inches
- Construction: Radial (R)
- Rim Diameter: 20 inches
- Typical Application: Heavy trucks & trailers
- UAE Tread Depth Law (Heavy Vehicles): 1.5 mm (RTA Dubai)
- Estimated Lifespan (UAE Highway): ~80,000 km
- Approx. Cost per Set (6 tyres): 6,000 AED
