Set on a snowy and icy road in Finnish Lapland, World Rally Champion Juha Kankkunen attained a speed of 130.165 km/h (80.88mph). The feat was possible owing to Nokian Hakkapeliitta TRI (440/80R28 151D & 540/80R38 167D) winter tyre for tractors, and Valtra T234. Having done top speed tests for cars, the tractor was a first for Juha.
In 2013, Nokian Tyres set a world record for fastest car on ice. Test driver Janne Laitinen from Nokian Tyres got to a speed of 335.713 km/h (208.602 mph) on the Gulf of Bothnia, using Nokian Hakkapeliitta 8 studded winter tyre.
Nokian Hakkapeliitta TRI winter tyre selection for tractors was launched in 2014 spring. Hakkapeliitta TRI tread pattern, winter rubber compound and siping maximise grip and traction, and improve longitudinal and lateral grip. Nokian introduced block pattern tyres for tractors over a decade earlier.
Tero Saari, Project Manager, R&D for Nokian Tyres says testing at the extremes requires unique skill. This attempt saw a 7.7-ton machine flying by at over 130 km/h. Nokian Hakkapeliitta TRI exhibited top notch grip, stability and handling. The record was set in 19 February 2015 at Vuojarvi emergency airfield, Finland. Total packed snow strip leangth was about 2,300 metres with a 50-metre speed trap at the middle.
Guinness World Records defines specific rules for world record for fastest tractor. Time taken to travel through a 50-metre speed trap is measured in both directions. The world record is an average of both measurements. The tractor took a flying start.