D3 F30 20” alloys
Hi guys, owned my alpina for almost 7 months u till selling the previous which was owned for 2 years.
Issue I have the 20” alloys have low profile 30, and shakes the limbs on any pot hole.
Has anyone gone up on the profile. ???
D3 F30 20” alloys issues
Re: D3 F30 20” alloys issues
Yes I have 19s on my D4 it was a wise choice . 20s look nice but there is not enough rubber on these to provide a decent ride and some protection
from pot holes .
from pot holes .
Re: D3 F30 20” alloys issues
Increasing the profile will, amongst other things, cause problems with speed reading. If my maths is correct then you will be going faster than the speedo indicates. This is because the overall diameter has increased, thus increasing the rolling circumference - meaning that a fixed point on the tyre travels further for each full rotation. This will not be aligned to the expected rotation distance that the car uses to calculate speed.
It may also cause problems with clearance around the arches.
The only surefire way of having higher profile tyres is to reduce the wheel size, which will come with higher profile tyres to maintain the overall wheel/tyre diameter, rolling circumference and speedo calibration
Charles
Teacher of Chemistry and driver of ALPINAs - not necessarily in that order
B3S Touring (49/116) - been to the moon and now on the way back!
Renault Grand Espace - not mine but the wife's!
Teacher of Chemistry and driver of ALPINAs - not necessarily in that order
B3S Touring (49/116) - been to the moon and now on the way back!
Renault Grand Espace - not mine but the wife's!
Re: D3 F30 20” alloys issues
Agree with Charles, best to source some 19s.
2019 G31 B5 Biturbo No.299
2012 F10 D5 Biturbo No.13
1993 Mercedes 190E 2.6 Sportline spec
1991 Mk1 Golf GTI Sportline cabriolet
2012 F10 D5 Biturbo No.13
1993 Mercedes 190E 2.6 Sportline spec
1991 Mk1 Golf GTI Sportline cabriolet
Re: D3 F30 20” alloys issues
This is quite handy for working out what wheel and tyre combo is required to maintain overall diameters:
https://alloywheels.com/tyreCalculator
https://alloywheels.com/tyreCalculator
2000 E39 B10 3.3 Touring #10
1993 Eunos Roadster
1993 Saab Turbo 900 Ruby Edition
Gone but not forgotten: Ford Escort Mk 2 1600 Sport, Alfasud, Saab 900 GLS, Saab 900 Turbo (8v), MB W124 E320 Sportline Estate, Honda Accord 1.8S 6th Gen
1993 Eunos Roadster
1993 Saab Turbo 900 Ruby Edition
Gone but not forgotten: Ford Escort Mk 2 1600 Sport, Alfasud, Saab 900 GLS, Saab 900 Turbo (8v), MB W124 E320 Sportline Estate, Honda Accord 1.8S 6th Gen
Re: D3 F30 20” alloys issues
Generally for Tyre information I’ve found:
Www.willtheyfit.com
The site includes offset (or as they call it overall “poke”) so you can check if hey will fit in the arch, speedo differences etc.
Handy little diagrams too for comparing old and new.
The Continental Data Book has quite a bit of useful tyre info:
https://cdn.ndias.com/DK/_Content/broch ... tabook.pdf
As does the Michelin book:
https://www.maxfinkelstein.com/pdf/catalog/MICHELIN.pdf
A summary for whatever tyres will safely fit on which wheels I have the attached (sorry I only had up to 19”), the chart is quite old.
Www.willtheyfit.com
The site includes offset (or as they call it overall “poke”) so you can check if hey will fit in the arch, speedo differences etc.
Handy little diagrams too for comparing old and new.
The Continental Data Book has quite a bit of useful tyre info:
https://cdn.ndias.com/DK/_Content/broch ... tabook.pdf
As does the Michelin book:
https://www.maxfinkelstein.com/pdf/catalog/MICHELIN.pdf
A summary for whatever tyres will safely fit on which wheels I have the attached (sorry I only had up to 19”), the chart is quite old.
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JohnW
2008 B3 BiTurbo Coupe #161
Previous: 2011 D3 BiTurbo Saloon #373, 2014 F30 320iX M Saloon, 2009 M3 DCT Coupe, 2008 B3 BiTurbo Coupe #074, 2009 E82 123d Coupe, 2006 E92 325i Coupe, 2002 E46 325iSE Coupe, 1998 E36 318iSE Saloon
2008 B3 BiTurbo Coupe #161
Previous: 2011 D3 BiTurbo Saloon #373, 2014 F30 320iX M Saloon, 2009 M3 DCT Coupe, 2008 B3 BiTurbo Coupe #074, 2009 E82 123d Coupe, 2006 E92 325i Coupe, 2002 E46 325iSE Coupe, 1998 E36 318iSE Saloon