Wheel sizing / offset advice?

[arronm]

20 x 9.5" +30 is almost equivalent to 20 x 8.5 +20 (2.7mm less)

check the backspacing on both of these, you say they are almost the same.

 

[ruredi]

The three comparisons I made...

Comparison 1 - 20 x 9.5" +30 is almost equivalent to 20 x 8.5 +20 (2.7mm less). 20 x 8.5 +20 on the left.

Comparison 2 - The 20 x 11 +43 quite obviously clears the hub and the big brakes! It also only pokes 4.7mm more than a 20 x 10 +35. It's the equivalent of a 20 x 10 +30. 20 x 10 +35 (LEFT) VS 20 x 11 +43 (RIGHT)

Here is 20 x 10 +35 (LEFT) VS 20 x 11 +43 (RIGHT)

Comparison 3 - 20 x 9.5" +30 VS 20 x 9.5 +35

 

[ruredi]

20 x 9.5" +30 is almost equivalent to 20 x 8.5 +20 (2.7mm less)

check the backspacing on both of these, you say they are almost the same.

Sorry mate! I was referring to 'poke' only. I don't think backspacing is too much of any issue here? There have been no reports of any of these sizes hitting the suspension?

 

[ruredi]

Double post.

 

[ruredi]

The 20 x 9.5 +35 will be 6mm closer to the suspension than my current 20 x 8 +48 HSVi Sabres.

The 20 x 11 +43 will be 5.1mm closer to the suspension than a 20 x 9.5 +57 HSV Wheel.

 

[dimetime]

Have you looked at the vertini rf 1.3 (koya sp04 lookalike) or the rf 1.1, they have better offsets then the koyas and plenty of colours.
Realistically you are going to roll your rear guards and youll want to have +40 offset to run a 275 tyre and not have to drive like a grandma.
Id get your offset right or youll be paying for in later trying to roll you guards again or substituting for skinny tyres.

 

[ruredi]

Have you looked at the vertini rf 1.3 (koya sp04 lookalike) or the rf 1.1, they have better offsets then the koyas and plenty of colours.
Realistically you are going to roll your rear guards and youll want to have +40 offset to run a 275 tyre and not have to drive like a grandma.
Id get your offset right or youll be paying for in later trying to roll you guards again or substituting for skinny tyres.

The Koya are completely custom offsets?

The 20 x 11 or 20 x 10.5 inch rear I'm looking at are +43 offset?

The 275 tyre is stretched (slightly) I admit though.

 

[ruredi]

If the 11" Rear is going to be too much then I'm just going to have to go with

20 x 9.5" (Concave) +35 front running 245/35
20x 10 (Deep Concave) +35 running 275/30.

I only wanted the 11" rear because you get more concave when comparing to a 10".

At least with a 10", the tyres are not stretched.

 

[ducker85]

The 20 x 9.5 +35 will be 6mm closer to the suspension than my current 20 x 8 +48 HSVi Sabres.

The 20 x 11 +43 will be 5.1mm closer to the suspension than a 20 x 9.5 +57 HSV Wheel.

That will fit fine

 

[dimetime]

Those pictures i posted are of +35 deep concave 20x10 all round and he has 245/35r20 tyres so provided you are happy to roll your guard and either get coil overs or only go as low as ssl youll be right