Car Repairman Interview Question:

Tell me the Reason That Why Big Tyres Are Used In Rear Of Vehicles?

Submitted by: Muhammad

Large tyres provide larger surface area touching the ground, thus providing the more pulling power. Basically tractors have larger rear tyres because tractors don't have to operate at higher speeds, thus getting the same ground speed with larger tyres. Moreover gear ratios don't have to be as high as b/c of the tyres.
Submitted by: Muhammad