Just thought I'd throw that in there...
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FFS. I give up.
Last edited by Mr Bizzle; 27-06-2012 at 08:04.
Way too old for signatures
Ha come on bizzle, your first reply was yes then you've edited it.
It's obviously not as simple as it seems.
Your answer doesn't really explain why it doesn't equate to the same thing.
Fwiw whilst most wheels structures alter according to offset some do just pack out the mating face of the wheel.
Im fairly certain Rotas are one of them, for example a grid drift from et30 to et12. I've seen it on borbets, mims etc. Ie the wheel design /concavity / everything else remains constant but the back spacing alters.
For this question thread the answer is yes!
It's the same fitment! Et10 is the same as et30 with 20mm spacer. It's obvious. Just a couple people on here trying to be clever and make it complex imo
Yeah... this was made to be way more complicated than my initial post was questioning.
I understand how offset works, obviously. I understand suspension geo also, obviously. I just have gaps in my knowledge when it comes to scrub radius - I knew the logic, but just wanted to double check. If I could increase the track width to achieve my desired result (basically to be able to fit wider wheels for wider tyres, and have clearance room on the rear face from the coilover body) then I would do that, but I'm not simply looking for spacing on my car, I need clearance.
Of course it's the same fitment you plonker, nobody said otherwise... however it does not change the wheels offset, just moves the centreline of the wheel further away from the hub, altering scrub radius, akerman and various other steering and bump related things.
Basically, don't use spacers when you don't absolutley have to, because it's a shit idea
You have the spacer on the wrong side chumley.
Um, I'm confused. Scrub Radius is established by Camber and SAI. Offsets or spacers would reposition in the SR within the tyre contact patch but wouldn't actually make it larger or smaller. Atleast, that's how I understand it ?
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LOL! principal is the same.
Spacer on the face of the wheel
An ET10 wheel or an ET30 wheel with a 20mm spacer is exactly the same thing.
The distance from the hub face to the centreline of the wheel will be the same for both.
No of course it doesn't magically change the ET of the wheel, but effectively in terms of geometry its THE SAMEEEE.