Vehicle & Technical > Discovery

Speedo Reading

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Guardian.:
i have same tyres, bf muds, and at 70 on your clock you are doing 80mph, and 30 on your clock you are doing 34mph.
i checked it out so i didnt get nicked at the speed cameras!

blackbob:
borrow a sat nav and watch the speed readout my disco has standard tyres and the speedo is out by about 4mph
so 34 is act 30mph

Range Rover Blues:
I've got 235/85 BFg M/T and my speedo is spot on according to my sat-nav :roll:

Budgie:
If you want to correct it then have a word with Ashcrofts. They may have a speedo drive gear that will do the job for you.  :wink:

According to my Garmin GPS, with 33" tyres, a Defender 1.41:1 ratio transfer box fitted and the standard Disco speedo drive gear, it's only reading 2 mph slow.  :D

Cassillis:

--- Quote from: "MudRat" ---I have 265 75 16s, at 70mph on my speedo whats my actual speed and also at 30mph, cheers
--- End quote ---


I run the same size in M/Ts on the pig and my speedo is spot on with the tomtom amazingly :shock:  :shock:

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