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05-15-2014, 11:01 AM
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Veteran member
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Join Date: Oct 2010
Location: Reading, Pa, The Villages, Reading, Pa, The Villages until the end.
Posts: 845
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Quote:
Originally Posted by ajbrown
Not sure I understand, are you saying it does not work? Here is an example: If you have 8 inch wheels, I suspect your tires are 18 - 18.5 inches in diameter. It should say on the tire or you can measure a tire where the magnet is attached. Lets say tire is 18".
18 in -> 457.2 mm
457.2 * 3.1416 = 1436
Enter 1436 into the speedometer.
If tires are 18.5 then enter 1476 (469.9mm * 3.1416)
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That worked..It only reads 2 mph fast than the actual gps speed.
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