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TIRE SIZE



Henry,
The formula is simple;
235/40/17=3D
(235 x .40 x 2) / 25.4 + 17 =3D 24.40 inches
or
235 x .40 x 2 + (17 x 25.4) =3D 619.8 mm
check: 619.8/25.4 =3D 24.40

Plug in the other sizes or do a spreadsheet.
Rob
' 97 328i
225/50/16 Dunlops =3D 24.86 inches
and
235/45/17 R1s =3D 25.33 inches
=20

Steele@domain.elided

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