Volvo has broken two world speed records in its Iron Knight truck, which was fitted with Goodyear rubber. The specially developed tires helped the 4.5 tonne truck achieve an average speed of 169.09kmh in a time of 21.29 seconds, over 1,000m. The Iron Knight also beat the record for the 500m distance, at 131.29kmh in 13.71 seconds. During this record run, which was carrued out at a closed-off test track in northern Sweden, the truck reached a top speed of 276kmh.
It was equipped with 315/70 R22.5 steer tires, based on Goodyear racing rubber as used by trucks in the FIA European Truck Racing Championship, and 495/45 R22.5 drive tires. Both are built on standard Goodyear truck tire carcasses with specially developed tread compounds and patterns.