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2002 E39 alloy wheel query

vtiniall · 2017-03-30 23:15:46

Hi All, Quick Question. I have a 2002 E39 BMW, this car came standard with factory fitted 15" alloy wheels. I have upgraded them to a set of 17" alloys. Now that I have changed them, Will the larger alloy wheels affect the speed of the car ?, In that I mean, when I am doing 80Kph or 100Kph on the speedo, will I be actually…

30-03-2017 11:15pm

#1

vtiniall

Registered Users, Registered Users 2 Posts: 88 ✭✭

Join Date: January 2009

Posts: 50

Hi All,

Quick Question. I have a 2002 E39 BMW, this car came standard with factory fitted 15" alloy wheels. I have upgraded them to a set of 17" alloys.

Now that I have changed them, Will the larger alloy wheels affect the speed of the car ?, In that I mean, when I am doing 80Kph or 100Kph on the speedo, will I be actually be doing that if I am clocked by a speed gun. Just want to make sure that the speedo in the car is not thrown off with the change in alloys wheels to a larger size ?.

Any Ideas ?. Thanks

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