YOHT debuts its largest tractor tyre

Superlative aficionados will be delighted to learn that Yokohama Off-Highway Tires’ (YOHT) has launched its “largest tractor tyre to date.” This addition to YOHT’s flagship Alliance line-up is one of two recent additions to the Agriflex+ 372 radial range for tractors and harvesters, a VF750/75R46 fitment suited to the “absolute largest tractors and machines.”

Introducing this new arrival, YOHT states that its VF tyres are “recognised as leaders in the global flotation radial market,” adding that Alliance VF technology “delivers in terms of effective soil protection, efficiency gains and yield increases.” The tyre maker further shares that Alliance Agriflex+ 372’s success was confirmed by a scientific field experiment by SEGES Innovation in 2021, with the results of field studies revealing the “positive effects of Alliance’s VF tyres in comparison to conventional ones.”

Tested on a tractor-trailer combination, the low inflation pressure of Agriflex+ 372 and Agriflex+ 389 tyres halved the track depth during the application of liquid manure. At the same time, wheel slip was reduced by 4.4 per cent, and measurements with a penetrometer showed lower soil compaction in the ‘VF tyre tracks’ in the soil zone from 0 to 40 cm. Furthermore, maize yields in the tracks on ‘VF tyre plots’ exceeded those of the tracks on the ‘conventional tyre plots’ by about 12.9 harvest units per hectare or approximately ten per cent. YOHT concludes that thanks to Alliance VF tyres (and depending on the working width of the liquid manure spreader), these results translate to yield increases between 1.5 and 2.2 per cent per hectare.