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Fronway Speedway 56 – 275/35ZRF20 102W XL Run-Flat

Description: The Fronway Speedway 56 in 275/35ZRF20 102W XL Run-Flat is a highly specialized Ultra High-Performance (UHP) tyre that couples a low-profile 20-inch fitment with advanced run-flat safety technology. This size is typically used on the front or rear axles of high-performance luxury saloons and sports coupes with staggered wheel setups, such as the BMW M Series, Audi RS models, and high-spec Mercedes-Benz AMG vehicles. It is engineered to deliver razor-sharp cornering, maximum grip, and high-speed stability, complemented by the essential security of limited-distance mobility after a puncture.

Key Features and Technical Details:

• Run-Flat Technology (RFT): The defining safety feature is the heavily reinforced, self-supporting sidewall structure. In the event of a total air pressure loss, these robust sidewalls prevent the tyre from collapsing, enabling the driver to continue driving safely for a limited distance (typically up to 50 miles / 80 km) at a reduced speed.

• Extra Load (XL) Capacity: The 102 load index certifies this tyre to support a substantial maximum load of 850kg (1874 lbs) per tyre. The XL (Extra Load) designation indicates a reinforced casing structure necessary to handle the extreme dynamic forces and curb weight associated with modern performance vehicles and their run-flat systems.

• High-Speed Stability: Rated W (up to 168 mph / 270 km/h), the Speedway 56 is certified for demanding, sustained high-speed applications. The ‘ZRF’ in the size code confirms a high-performance radial run-flat construction, optimized to resist heat build-up and deformation under intense driving conditions.

• Low-Profile Handling: The low 35-series aspect ratio minimizes sidewall flex, translating into instantaneous steering response and exceptional lateral stability, which is paramount for UHP driving and aggressive cornering.

• Asymmetric Tread Design: The high-performance asymmetric pattern features a continuous center rib for precise straight-line tracking and responsive steering. The wide, stiff outer shoulder blocks are designed to maximize the contact patch during cornering, ensuring superior dry grip.

• Hydroplaning Resistance: Multiple wide circumferential grooves are integrated into the design to rapidly and efficiently channel water away from the contact patch. This system works to significantly enhance resistance to hydroplaning and improve braking and traction in wet conditions.