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Fronway Speedway 56 – 245/45ZRF19 98W Run-Flat

Description: The Fronway Speedway 56 in 245/45ZRF19 98W Run-Flat is a high-specification Performance Touring tyre that incorporates essential run-flat safety technology. This size is commonly fitted to the front or rear axles of premium executive sedans and luxury crossovers that use 19-inch wheels, such as the BMW 5 Series, Mercedes-Benz E-Class, Audi A6/A7, and certain luxury SUV models. It is engineered to provide a confident blend of stable high-speed performance, refined ride comfort, and reliable wet/dry traction, with the crucial benefit 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 tyre puncture and subsequent 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.

• High Load Capacity: The 98 load index certifies this tyre to support a maximum load of 750kg (1653 lbs) per tyre. This robust load rating is vital for managing the curb weight and suspension demands of modern luxury and executive-class vehicles, ensuring stability under load.

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

• Asymmetric Tread Design: The tyre utilizes an asymmetric tread pattern optimized for balanced performance. The continuous center ribs ensure stable straight-line tracking and responsive steering, while the robust outer shoulder blocks enhance lateral grip and cornering confidence.

• Wet Weather Control: Multiple wide circumferential grooves and lateral siping details are integrated to effectively channel water away from the contact patch. This efficient drainage system enhances resistance to hydroplaning and ensures reliable braking performance in wet conditions.

• Comfort and Noise Reduction: The design utilizes an optimized variable pitch tread sequence. This engineering detail works to disrupt and minimize air-pumping noise and road harmonics, contributing to a quieter and more comfortable driving experience, which is particularly valued in the touring segment.