wheel offset question

[mickl]

does the higher the ET number means the more inset the wheel from the edge of the body ie from ET3 0to ET 34 given the same diameter rim?

 

[andy_cyp]

the more the offset the more the wheel will stick out.

example et30 as opossed to et34 means that the latter will stick out 4mm than the other, basically the hub of the rim is thicker.

 

[mickl]

the more the offset the more the wheel will stick out.

example et30 as opossed to et34 means that the latter will stick out 4mm than the other, basically the hub of the rim is thicker.

ah right. in that case the 17s I got should stick out more than the original 17" style II's I had but they don't seem like it.

 

[jgevers]

The et value of a wheel is the measurement from the centreline of the wheel to the hub facing.

This means that ET30 will stick out further than ET35.

regards,

Job

PS This might not sound logical, but apart from a few 4x4 cars this measurement will be negative. That is why the smaller the ET number, the further the wheel sticks out.

 

[mickl]

would spacers bring the the wheel out?

 

[Mambo]

would spacers bring the the wheel out?

Yup

 

[mickl]

Yup

do they come in set widths? do they need fitting?

I'd probably need longer bolts if I put spacers on wouldn't I?

 

[jgevers]

would spacers bring the the wheel out?

Yes they would but might give balance problems with unwanted vibrations as a result. Always better to have wheels with the correct ET value.

Different ET value can give geometry design problems like bumpsteer, rollcentre to centre of gravity ratio increase, etc. etc.

You can buy spacer kits from companies like Eibach and H&R. My personal view is that they are just hassle.

regards,

Job

 

[mickl]

Yes they would but might give balance problems with unwanted vibrations as a result. Always better to have wheels with the correct ET value.

Different ET value can give geometry design problems like bumpsteer, rollcentre to centre of gravity ratio increase, etc. etc.

You can buy spacer kits from companies like Eibach and H&R. My personal view is that they are just hassle.

regards,

Job

hmmm. decisions decisions. Might have to go back to the style II rims.

 

[Mambo]

hmmm. decisions decisions. Might have to go back to the style II rims.

You know it makes sense

 

[mickl]

You know it makes sense

is your last name Palpatine?

Mambo, can you confirm the tire sizes you have on your 18" rims? If I switch back to them I'd like to have working cruise control.

 

[Mambo]

I will double check tonight, but if memory serves me correctly Michellin Pilot Sports 225 40 18 @ front and 255 35 18 @ the back

 

[Chris Murray]

There is a range of acceptable offset values for any car. Mercedes have quite large ranges in offset. Both ET30 and ET34 are valid ET values and none require spacers.

 

[mickl]

There is a range of acceptable offset values for any car. Mercedes have quite large ranges in offset. Both ET30 and ET34 are valid ET values and none require spacers.

Chris

thanks for the info.

The wheels fit on fine, I'd just like to push them out a bit so they fill the arches a bit more. Spacers was a solution I was considering.

do you know if 245/35 x 18 tyres would fit onto the 18" style II rear rims?

 

[Chris Murray]

Hi
The 245/35 will fit fine although it is more usual to now find 255/35R18 as the rear tyre fitment.
email me at [email protected] and I'll forward a useful pdf about spacers etc.
Chris

 

[C43AMG]

I have the same tyre size as Mambo, no rubbing etc, go back to the Styling 11. Originality is always the best way to go !!!. As Mambo said "you know it makes sense"

Peter.