-
Protip: Profile posts are public! Use Conversations to message other members privately. Everyone can see the content of a profile post.
Tire Sizes - HELP
- Thread starter tosugrad
- Start date
It is not a good idea to go taller in the front and smaller in the rear. If you go either way, you should do the same for both.
The stock 215/40/17 has an overall diameter of 23.78"
The stock 255/40/17 has an overall diameter of 25.03"
If you go with 205/45/17 in the front, the diameter is 24.26"
The 245/40/17 in the rear is 24.72"
This would give you a different of about 1/2" taller in the front and slightly over 1/4" smaller in the rear.
Personally I would not even look at those tires since they don't have your right sizes. Why do you want to go 1 size narrower all around?
The biggest issue is it might trigger your TCS light and might affect your ABS. Not 100% sure but that is my guess unless you go with the same increase or the same decrease for front and rear.
The stock 215/40/17 has an overall diameter of 23.78"
The stock 255/40/17 has an overall diameter of 25.03"
If you go with 205/45/17 in the front, the diameter is 24.26"
The 245/40/17 in the rear is 24.72"
This would give you a different of about 1/2" taller in the front and slightly over 1/4" smaller in the rear.
Personally I would not even look at those tires since they don't have your right sizes. Why do you want to go 1 size narrower all around?
The biggest issue is it might trigger your TCS light and might affect your ABS. Not 100% sure but that is my guess unless you go with the same increase or the same decrease for front and rear.
Osiris_x11
Gold Member, Moderator: Marketplace
my 2-pence'r. . .
Regarding 215/40R17 vs. 205/45R17, I made the seamless transition from the former to the latter on my non-OEM front wheels w/o rubbing or TCS/ABS issues on my previous NSX, a '91 coupe w/ Zanardi/Type-S suspension.
My after-market front wheels are 17x7 just like the OEM front wheels, but my front offset is +35mm vs. +55mm for the OEM front wheels. The Zanardi/Type-S suspension perhaps lowers the OEM ride height by ~0.6". The tires in question were the Bridgestone Potenza RE050A Pole Position.
Joshs has a '91 NSX coupe w/ OEM suspension & the '02+ OEM wheels (F: 17x7 +55mm, R: 17x9 +56mm) & also switched from 215/40R17 of another brand/model to 205/45R17 on the Bridgestone Potenza RE050A Pole Position. He noticed a very-very minor rub when turning lock-to-lock towards one side (I can't recall which side, though). It didn't sound significant enough for me to not consider such a size in this particular application even in the future, but I'm sure he can comment better on the matter (if it's gotten worse or gone away, etc').
Check-it: http://www.nsxprime.com/forums/showpost.php?p=1121558&postcount=8
Regarding ABS/TCS issues, I'd assume the '02+ NSX wouldn't see such a variance as the '91-'93 NSX when going w/ 205/45R17. The '91-'93 OEM front tire was 205/50R15 vs. '02+ OEM front tire being 215/40R17. Of-course the rear-size is a factor as well. I assume the '94-'01 & '02-'05 ABS/TCS vary from the '91-'93 due to different wheel/tire size (outer rolling diameters vary). . .
For further calculations:
Tire Size Calculator - tire & wheel plus sizing
Regarding 215/40R17 vs. 205/45R17, I made the seamless transition from the former to the latter on my non-OEM front wheels w/o rubbing or TCS/ABS issues on my previous NSX, a '91 coupe w/ Zanardi/Type-S suspension.
My after-market front wheels are 17x7 just like the OEM front wheels, but my front offset is +35mm vs. +55mm for the OEM front wheels. The Zanardi/Type-S suspension perhaps lowers the OEM ride height by ~0.6". The tires in question were the Bridgestone Potenza RE050A Pole Position.
Joshs has a '91 NSX coupe w/ OEM suspension & the '02+ OEM wheels (F: 17x7 +55mm, R: 17x9 +56mm) & also switched from 215/40R17 of another brand/model to 205/45R17 on the Bridgestone Potenza RE050A Pole Position. He noticed a very-very minor rub when turning lock-to-lock towards one side (I can't recall which side, though). It didn't sound significant enough for me to not consider such a size in this particular application even in the future, but I'm sure he can comment better on the matter (if it's gotten worse or gone away, etc').
Check-it: http://www.nsxprime.com/forums/showpost.php?p=1121558&postcount=8
Regarding ABS/TCS issues, I'd assume the '02+ NSX wouldn't see such a variance as the '91-'93 NSX when going w/ 205/45R17. The '91-'93 OEM front tire was 205/50R15 vs. '02+ OEM front tire being 215/40R17. Of-course the rear-size is a factor as well. I assume the '94-'01 & '02-'05 ABS/TCS vary from the '91-'93 due to different wheel/tire size (outer rolling diameters vary). . .
For further calculations:
Tire Size Calculator - tire & wheel plus sizing
Last edited:
Similar threads
