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Discussion Starter · #1 ·
Hello.
I'm Marco and I'm going to fit my 156 with MitoQV Brembo 4 pot calipers.

I already know that you need GTA rims or GTV rims to fit the GTA calipers. But I also know that the MitoQV brake system is a smaller than the GTA.

So I'm wondering there are other rims that fits them? (no spacers please)
For example some 7x17 ET35. Anyone knows?

thanks
 

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The MiTo uses 305x28 discs, same size as early GTA & GTV V6.
The std wheel size on the GTV V6 was 16" and there was a 16" winter option for early GTA too.
So any 16" GTV/Spider V6 wheels or 16" GTA wheels will fit.
I suspect any "normal" 156/147/GT 16" would need spacers.
I ran 15mm spacers with my 16" Selespeed wheels with my Brembos.
 

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Discussion Starter · #3 · (Edited)
.. or 16" GTA wheels will fit.
Hi thanks for the answer. I know these rims (code 60676374) and they are my first choice. But I was thinking if there are other ones. For example the GT 7x17 ET35.
Because the Mito calipers are smaller than the GTA ones.


My mechanic - which is experienced in Alfa Romeo racing and historic cars - said its no good to have a 2/3cm bigger wheel track. (so for example the GTV alloys with ET30,5mm will stick out 16mm a wheel=32mm bigger wheel track).
 

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My mechanic - which is experienced in Alfa Romeo racing and historic cars - said its no good to have a 2/3cm bigger wheel track. (so for example the GTV alloys with ET30,5mm will stick out 16mm a wheel=32mm bigger wheel track).
Your calculation is miles off there.
Std 147/156 offset is ET40.5 = 10mm difference to the GTV ET30.5 = 20mm wider track.

On my 156 I ran an effective ET25.5 (15mm spacers on an ET40.5 wheel) with obviously a 30mm wider track. I ran it for over 10-years like that and it is still running like that now.

The close part of the caliper clearance to 16" wheels is to the balance weights. Less than 1mm clearance from caliper to balance weights on mine.
 

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Discussion Starter · #6 ·
GTA 17" wheels with 215/45 will give 11mm more.
GTA 16" with 205/55 will give 6mm more
GTV 16" with 205/55 will give 11mm more


maybe its because I'm referring to actual tyre width, not the rim only? sorry but this thing is making me crazy :)
thank you
 

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GTA 17" wheels with 215/45 will give 11mm more.
GTA 16" with 205/55 will give 6mm more
GTV 16" with 205/55 will give 11mm more


maybe its because I'm referring to actual tyre width, not the rim only? sorry but this thing is making me crazy :)
thank you
OK

I ran 205/55R16 on the std 6.5" x 16" ET40.5 with 15mm spacers and the outer edge of my tyre was 1mm further out than the 225/45R17 on an ET35 GTA wheel.
 

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If your worry is about Arch clearance, people have run the 17" x 7.5" ET30.5 GTV V6 on a std 156.
Same goes for the 17" x 7.5" GTA/GT3.2 ET35.
 

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Discussion Starter · #9 ·
Thank you very much, very helpful!
I was wrong with terms... because its true that the tyre will stick out a bit, but internally the tyre starts from the same point so there is less wheel track increase that I thought.
Thanks!

Have a nice day:beer:
 
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