15 x8 + 20 offset question

Wheels, Suspension, Brakes & Tyres questions and answers

Moderators: timk, Stu, zombie, Andrew, -alex, miata

ralt
Fast Driver
Posts: 423
Joined: Thu May 19, 2011 11:10 am
Vehicle: ND - 2
Location: brisbane

15 x8 + 20 offset question

Postby ralt » Wed May 21, 2014 12:58 pm

Hi.
I have the opportunity to buy wheels as above.
The question is will they fit without having to roll the guards and will a 195 50 tyre fit?. If not what do you recommend.

ralt
Fast Driver
Posts: 423
Joined: Thu May 19, 2011 11:10 am
Vehicle: ND - 2
Location: brisbane

Re: 15 x8 + 20 offset question

Postby ralt » Wed May 21, 2014 1:29 pm

Hi again.
Forgot to advise the model: na

User avatar
zossy1
Racing Driver
Posts: 1979
Joined: Wed Aug 18, 2010 8:48 am
Vehicle: NA8
Location: Southern Highlands, NSW
Contact:

Re: 15 x8 + 20 offset question

Postby zossy1 » Wed May 21, 2014 1:34 pm

You will need to roll the guards but they will fit fine.

narita
Racing Driver
Posts: 657
Joined: Sun Dec 02, 2012 7:27 pm
Vehicle: NB Roadster

Re: 15 x8 + 20 offset question

Postby narita » Wed May 21, 2014 1:59 pm

its a very common size.

if you google search those specs with "miata mx5" you should fine what your looking for,

otherwise you can also use willtheyfit.com

OR

you can do some old fashioned brain work and measure it.
NitroDann wrote:No one cares for your faux JDM posh lifestyle.

Dann


WINTON PB - 1:57.4000

Dundy2456

Re: 15 x8 + 20 offset question

Postby Dundy2456 » Wed May 21, 2014 4:33 pm

I have this size and offset. No guard work at all. No scrub, wheels fit fine.

User avatar
zossy1
Racing Driver
Posts: 1979
Joined: Wed Aug 18, 2010 8:48 am
Vehicle: NA8
Location: Southern Highlands, NSW
Contact:

Re: 15 x8 + 20 offset question

Postby zossy1 » Wed May 21, 2014 6:27 pm

Dundy2456 wrote:I have this size and offset. No guard work at all. No scrub, wheels fit fine.


A good sized pothole on heavy lock and you will crease your guard when the tread catches on the lip and unrolls it. Ask me how I know.

User avatar
hks_kansei
Speed Racer
Posts: 6154
Joined: Tue Feb 03, 2009 10:43 am
Vehicle: NB8A
Location: Victoria

Re: 15 x8 + 20 offset question

Postby hks_kansei » Wed May 21, 2014 6:50 pm

I had 15x8+25 on my NB, with 205/50/15 and it clipped the rear guards slightly.
1999 Mazda MX5 - 1989 Honda CT110 (for sale) - 1994 Mazda 626 wagon (GF's)

narita
Racing Driver
Posts: 657
Joined: Sun Dec 02, 2012 7:27 pm
Vehicle: NB Roadster

Re: 15 x8 + 20 offset question

Postby narita » Wed May 21, 2014 6:52 pm

hks_kansei wrote:I had 15x8+25 on my NB, with 205/50/15 and it clipped the rear guards slightly.


8a or 8b?
NitroDann wrote:No one cares for your faux JDM posh lifestyle.

Dann


WINTON PB - 1:57.4000

project.r.racing
Speed Racer
Posts: 3722
Joined: Sun Jan 18, 2009 10:16 pm
Vehicle: Non MX-5
Location: Glasshouse Mountains, QLD

Re: 15 x8 + 20 offset question

Postby project.r.racing » Wed May 21, 2014 9:14 pm

narita wrote:
hks_kansei wrote:I had 15x8+25 on my NB, with 205/50/15 and it clipped the rear guards slightly.


8a or 8b?
he has a 8a. but does it matter? same body aren't they?

User avatar
beavis
Forum sponsor
Posts: 1405
Joined: Mon Feb 02, 2009 12:31 pm
Vehicle: NB8B - Turbo
Location: Melbourne

Re: 15 x8 + 20 offset question

Postby beavis » Wed May 21, 2014 9:18 pm

8A and 8B are the same.

Rolling the guard lip is easy anyway.

Guard clearance is also gonna depend on ride height.
Turbo NB Build Thread | BeavisMotorsport.com | YouTube.com/bbeavis | Cars: NA6, NA8-VVT, NB-Turbo, ND-2L

User avatar
zossy1
Racing Driver
Posts: 1979
Joined: Wed Aug 18, 2010 8:48 am
Vehicle: NA8
Location: Southern Highlands, NSW
Contact:

Re: 15 x8 + 20 offset question

Postby zossy1 » Wed May 21, 2014 9:59 pm

beavis wrote:8A and 8B are the same.

Rolling the guard lip is easy anyway.

Guard clearance is also gonna depend on ride height.


True, but who runs 15x8 +20 at standard ride height? :) Even at stock height, a good pothole with some decent steering lock and unrolled guards is asking for trouble.

Why not just roll the guards? It's not hard and if done right it won't even chip the paint.

Dundy2456

Re: 15 x8 + 20 offset question

Postby Dundy2456 » Wed May 21, 2014 11:10 pm

zossy1 wrote:
Dundy2456 wrote:I have this size and offset. No guard work at all. No scrub, wheels fit fine.


A good sized pothole on heavy lock and you will crease your guard when the tread catches on the lip and unrolls it. Ask me how I know.


How do you know? haha (kidding). A good sized pothole on heavy lock for any car (that is as roadster-y as the mx5) is bad news :p I do my best to avoid them!

project.r.racing
Speed Racer
Posts: 3722
Joined: Sun Jan 18, 2009 10:16 pm
Vehicle: Non MX-5
Location: Glasshouse Mountains, QLD

Re: 15 x8 + 20 offset question

Postby project.r.racing » Fri May 23, 2014 9:59 am

jeez how fast you going at full lock when hitting a pothole to cause damage?

i cannot do more than 15kph at full lock.

manga_blue
Forum Guru
Posts: 4897
Joined: Mon Apr 24, 2006 7:27 pm
Vehicle: NA8
Location: Moruya, NSW

Re: 15 x8 + 20 offset question

Postby manga_blue » Fri May 23, 2014 10:37 am

You can be going much faster when it's opposite lock. :beer:
’95 NA8

narita
Racing Driver
Posts: 657
Joined: Sun Dec 02, 2012 7:27 pm
Vehicle: NB Roadster

Re: 15 x8 + 20 offset question

Postby narita » Fri May 23, 2014 2:43 pm

project.r.racing wrote:
narita wrote:
hks_kansei wrote:I had 15x8+25 on my NB, with 205/50/15 and it clipped the rear guards slightly.


8a or 8b?
he has a 8a. but does it matter? same body aren't they?



i was more so wondering if he had 15's on a 8b since the brakes are bigger.
NitroDann wrote:No one cares for your faux JDM posh lifestyle.

Dann


WINTON PB - 1:57.4000


Return to “MX5 Wheels, Suspension, Brakes & Tyres”

Who is online

Users browsing this forum: No registered users and 330 guests