Why tractor have small wheels in front, big whells back side ?
Not all farm tractors have small front tires. The ones that do are rear wheel drive only, and the front tires swivel on the axle to turn the vehicle, just like a car. There are some 4 wheel drive tractors that have “medium” size front tires (these also turn like a car – but with diminished turning radius): http://www1.caseih.com/northamerica/Prod… And some that have the same large tires all the way around (this type do not steer by turning the front wheels – like a car – but actually have a hinge in the middle of the frame – behind the cab – that swivels in order to make the tractor turn (called articulated steering). http://www.deere.com/en_US/ProductCatalo… There are also some that have (rubber) tracks. These turn by using clu
