Sorry for novice question.
If I change my 18” wheels to 19” do I need to have the speedo re-calibrated?
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Speedo re-calibration
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BeardyJon
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Speedo re-calibration
+1 also interested in the answer to this - tried googling a while ago but couldn't find anything.
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2008 E86 Z4 M Sport 2.0i - Gone
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2008 E86 Z4 M Sport 2.0i - Gone
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Onlinemmm-five
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Speedo re-calibration
Not if you keep the overall diameter/circumference the same by reducing the profile of the 19" tyres.
So, for example, going from 255/40r18 to 255/35/r19 will not increase the over diameter/circumference.
Similarly, going from 225/45r18 to 225/40r19 will only increase it by 0.4% - so well within the over-read the speedo gives normally.
So, for example, going from 255/40r18 to 255/35/r19 will not increase the over diameter/circumference.
Similarly, going from 225/45r18 to 225/40r19 will only increase it by 0.4% - so well within the over-read the speedo gives normally.
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Some bits now over 163,000 miles, some less than 1,000 miles.
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Some bits now over 163,000 miles, some less than 1,000 miles.
Individual Ruby Black, Individual extended champagne leather, plus many options
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Mop1
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Speedo re-calibration
mmm-five Thanks for your comprehensive answer.
Really helpful
Really helpful
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Russ59
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Speedo re-calibration
Try these tyre calculator sites, easy to use to get the correct rolling radius.
https://www.tyremen.co.uk/tyre-size-calculator
https://www.willtheyfit.com/wheels/
https://www.tyremen.co.uk/tyre-size-calculator
https://www.willtheyfit.com/wheels/
2005, 3.0l Toledo Blue, sports seats, sports suspension, ZHP, MFSW,4 clear spot rear lights, clear side repeaters and third brake light , 19" AXE EX14 wheels, DIY carbon badges, interior parts gloss black wrapped, rear spoiler