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2004 Alphard Rims Mod

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Hi Henry,


Welcome to this Forum,

I am sure you will receive some replies.

In the meantime, there are tools on the internet that allow you to input your wheel size and tyre size; and to input your intended (or hoped for) new sizes.


These tools will advise you of changes to rolling diameter (affects your odometer and speedo).

They also advise changes to the width and changes to the wheel clearance increases or decreases, wheel poke and inset.

They are vehicle independent so do not advise you of changes to actual clearances within your wheelarches. tyre to chassis or suspension.

They will inform you of any changes in vehicle height, and loss, or gain, to the clearance in vertical gap.


Give it a go.


Finally, any professional tyre outfit should be able to do all for you, and measure any actual changes after the new wheels and tyres are fitted.

Tell your insurance company what changes have been made.

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