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Fitment advice - 18x9.5 +20

8 posts in this topic

Posted · Report post

Hi guys - just wanted to get some advice on rim fitment for my 350z Track running MCA Blues with ~1mm drop.

I'm currently looking at a set of Ray Gramlights 57c6 which are 18x9.5 with +20 offset (for all corners) - I just wanted to get advice on fitment:

Questions I had:
Fronts: It looks like 9mm less inner clearance and 29mm outer extension - Will this clear Brembos? Will I need to roll my guards?
Rears: Identical inner clearance and 26mm outer extension - I shouldn't need to roll my guard for this right? 

Sorry if they're silly questions!

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Posted · Report post

The rears will be fine

Clearing the Brembo's is a wheel specific question - you need to work that out with the vendor

I have 18x9 ET30 on mine with no risk to the guards so I would expect 18x9.5 ET20 to be ok

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Posted · Report post

Thanks Martin, worst case would you advise a small spacer if the fronts don't clear the brembos? 

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Posted · Report post

Hmmm, I find spacers to be a bloody nightmare, often a hassle when changing wheels or working on the car and removing/re-installing the wheel

One time at a tyre shop they removed the wheel and put it on the ground, they failed to notice the spacer stuck to the wheel and the fact that it fell onto the ground - when I got home I had a spacer on one side and none on the other

It's the spoke shape that determines if the wheel will clear the brembo's - skinny spacers only help in a small number of cases and large spacers are illegal (for good reason) - with the shape of your wheels there is a good chance they will clear but a commercial vendor should be able to confirm

 

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Posted · Report post

Thanks martinz and just to double check - you mentioned rear should be fine, you reckon the fronts won't need guard work to fit? The wheels came off an evo so I'd presume it should clear brembos but will probably need to double check.  

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Posted · Report post

you will be fine with spacers. ive used them on a lot of my cars

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Posted · Report post

I am currently running 18x9.5 +20 on the front and 18x10 +30 with 25mm spacer on the rears. There is huge amounts of room with rims i got but it really comes down to the rim you are buying.

Only thing i would say is with a spacer on the front you might just stick outside the guards as my fronts sit pretty flush with the guards.

Hope i was of some help :) good luck otherwise.

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