Answers

2016-02-25T20:21:05+05:30
Because of their balance ...if there would be only 6 or 4 tyres  then it will not able to do balance and it will fall down....you yourself imagine once that if their would be 6 tyres on truck would it be able to balance...for example if there would be more load on the truck and having less tyres it will definately fall.....

so 8 tyres are necessary for trucks actually they are important 

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