Quote:
Originally Posted by marysmith
rooftop rack will put more weight on the car hence lower mpg, I don't think there will be a dramatic change on the mpg, bikes are not that much weight anyway.
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Maybe I'm misreading you, but how can it make any difference where the rack is mounted with respect to weight? The total weight is the total weight, regardless of distribution.
The big reason for the drop in FE with a top-mounted rack is increased wind resistance.