Quote:
Originally Posted by E92Fan
Remember also that the spokes of the wheel will also be 5mm closer to the hub/brake caliper/brake disc surface
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Great write up Tony
Just a point - changing the offset doesn't have to move the spokes in relation to the mounting face or change your brake clearances....
If a rim width goes up by 1inch (call it 25mm) then if they add 12.5mm to each rim lip the offset would be the same, however for example, if they added all 25mm to the inside lip, the offset would move by inwards 12.5mm, but the spokes would not move in relation to the mounting face, only the tyre/rim position would change
But I suppose with different offset versions of the
same wheel a manufacturer would just machine more off the mounting face to increase the offset, thus moving the
whole wheel and spokes toward the brake.
So it is not 100% that a wheel will fit based on offset, width and diameter. Brake clearance could still be compromised even if the other parameters are met - is that right?
Also,
As I'd guessed from looking, BMWs have a positive offset wheel, but that is not clear in the 'ET' value, or is positive assumed with no sign?,so negative offset wheels would be 'ET-xx'?
Cheers!