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Basic math/speedo question 200 1981

posted by  Don Foster on  Sat Nov 15 04:10 CST 2003
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last visit: Sun Oct 5 11:53 CST 2014
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Larger diameter means that the wheels turn fewer revolutions in a mile, so the odo and speedo will both read low.

To calculate the error, you need to know the rolling radius of the original tires and of the new tires. The % increase in rolling radius corresponds to the % drop in indicated speed (and miles traveled).

--
Don Foster (near Cape Cod, MA)






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New Basic math/speedo question [200][1981]
posted by  sejose  on Sat Nov 15 03:54 CST 2003 >


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