New wheels - Rolling Diameter?? pls help!

[shorty123]

Hiya guys, i have picked my new wheels out, using performancealloys guidance i have selected the following.

Compomotive MO comp black 17" + Avon ZZ3 235/45/17 (REAR)
Compomotive MO comp black 16" + Avon ZZ3 205/45/16 (FRONT)

Can anyone see any probs or rolling diameter issues with the combination? There are other tyre size choices available, but i want to stick with the 16"/17" combo as i think 18" are a little oversized for the cars looks (personal opinion only mind you)

I dont want any rolling diameter issues (as a pirority) but would also like to know if the turning circle will be compromised?

Anyone with a similar combo? I know many people have 17/18 combos.

Cheers guys!

[JR]

shorty123 said:

Compomotive MO comp black 17" + Avon ZZ3 235/45/17 (REAR)
Compomotive MO comp black 16" + Avon ZZ3 205/45/16 (FRONT)

Can anyone see any probs or rolling diameter issues with the combination? I dont want any rolling diameter issues (as a pirority) but would also like to know if the turning circle will be compromised?

Anyone with a similar combo? I know many people have 17/18 combos.

Front original: 605 or 626 depending on whether you consider 205/55 or 205/60 to be standard
Rear original: 626 or 650 depending on whether you consider 225/50 (or 245/45) or 225/55 to be standard.

If you take the smaller original dimensions then you have chosen:
Front 590 2.5% smaller and
Rear 644 3.0% larger, seems odd to move in opposite directions.

You may consider changing the front to 205/50/16 613 1% larger
Or changing the rear to 235/40/17 619 1% smaller.

[shorty123]

excellent advice jr many thanks!

[pies]

www.miata.net/garage/tirecalcold.html

[JR]

shorty123 said:

excellent advice jr many thanks!

Happy to help. I think that the MO should complement the car well. Can you post a photo when they have been fitted?

[shorty123]

JR said:

Happy to help. I think that the MO should complement the car well. Can you post a photo when they have been fitted?

sure, one of the other reasons for the 16/17 choice is because i can only get the MO 6 spoke in these sizes (they dont do a 17x7 in the six, only the five)

gonna double check everything tomorrow and order.

thanks for the help