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Speedometer Readings and their Reliability

Specific discussion about the E89 2009 Z4 (sDrive35is, sDrive35i, sDrive30i, sDrive23i)
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ronk
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Location: Durham

Speedometer Readings and their Reliability

Post by ronk » Sat Oct 02, 2021 6:37 pm

35 v 30 ratio on a 255 -19 “ rim is +4%
You don't stop playing when you get old - You get old when you stop playing!
So I bought a 35is with all the toys to play with. :thumbsup:
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Smartbear
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Speedometer Readings and their Reliability

Post by Smartbear » Sat Oct 02, 2021 7:41 pm

ronk wrote: ↑Sat Oct 02, 2021 6:37 pm 35 v 30 ratio on a 255 -19 “ rim is +4%
That’s about right to give an accurate speedo reading :thumbsup:
Rob
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e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold
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