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My data with bike and rack

Discussion in 'Model 3: Driving Dynamics' started by MABMAB, Dec 29, 2019.

  1. MABMAB

    MABMAB Member

    Joined:
    Jun 19, 2019
    Messages:
    719
    Location:
    Mulligan's Valley
    We used our old car for travel, never paid much attention to aerodynamics or consumption with our bikes on. Had purchased an aftermarket hitch for the 3 when we bought it. Today I did some testing to evaluate things for future road trips. Total trips were 17.5 miles, within an hour of each other, same route, same AP controlled speed. WH/mi data recorded along the way and upon completion:

    Bike/Rack on versus off along the data points
    465/368
    426/320
    361/261
    364/264
    322/234 end of trip.

    Seems to me that this would cut our range by about 1/3rd, especially if I put the 2nd bike on. We could take off the tires and seats to improve a bit but what a major difference. I've read that the aerodynamic differences are worst at faster speeds so this would really limit travel with our bikes. Might have to get the CT and keep the bikes in the back...
     

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