How accurate are those iPhone speedometer apps?

Discussion in 'Motorized Bicycle General Discussion' started by thxcuz, Sep 17, 2013.

  1. thxcuz

    thxcuz Member

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    Just wondering. I used map my ride earlier today and it said my top speed was 16mph. I downloaded an app and I topped at 24mph.
    Not sure which is right. I would like to think I was going faster than 16 but with my dinky kit, who knows.

    One more thing
    I'm going faster on half choke than full. My engine was sitting for several months and I haven't gotten a fresh mix in it yet. Do you think my carb is gunked up?

    Ok I lied...on final thing

    St. Louis folks. I saw a bunch of you riding on Broadway last Sunday. Is there a group? Good looking bikes!
     
  2. racie35

    racie35 Active Member

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    Most GPS apps are right on
     
  3. bairdco

    bairdco a guy who makes cool bikes

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    i've used a few gps speedo aps that were right on. tested them in cars and they matched the speedos.
     
  4. Easy Rider

    Easy Rider Santa Cruz Scooter Works

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    I use B.icycle and it seems to be pretty accurate. Shows a map of the route you rode, avg and max speed even allitude you've climbed. Only thing that was way off was the calories I burned. haha
     

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  5. thxcuz

    thxcuz Member

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    I was using an app called speed box (it was free)
    Map my ride is good for distance and stuff but its more for the spandex crowd.
    Sure seemed I was going faster than 16.
     
  6. Pilotgeek

    Pilotgeek New Member

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    It's not really a matter of the app so much as it is of the accuracy of the GPS in your phone. Make sure it gets a full signal lock before using. I use mine as a reference to test how far speedometers are miscalibrated.
     

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