Mazda3 Forums banner

URGENT

2K views 20 replies 8 participants last post by  dmention7 
#1 ·
can we use a tire that is 215/50/17 on the stock rim?

its really urgent so please reply

thx
 
#3 ·
ive just ordered 4 tires 215/50/17 that i plan to use on my 17x6.5 rim and i am not that sure that i can use this tire on my car

there will be rubbing?
you sure it will fit and be ok? i just want to be sure otherwise i am canceling the order
 
#4 ·
you will be fine but why dont you get a 215/45/17 instead? much better choice imo.
 
#6 ·
[quote author=the415 link=topic=67149.msg1153557#msg1153557 date=1169007207]
you will be fine but why dont you get a 215/45/17 instead? much better choice imo.
[/quote]

and why is better? sry to ask but i am bad and never understood what the fuck those nr meen
 
#8 ·
and why 215/45/17 is better then 215/50/17? why is it better?
 
#10 ·
It is not that they are "better" but compared to the stock 205/50-17 the 215/45's are wider and have a slightly shorter side-wall possibly yeilding better turn-in response.

It should be noted that most 215/45's (or at least every one that i've read the specs on) reccomend at least a 7" wide rim. This may mean unless you are buying a tire with a super stiff side-wall that they may exhibit the undesired behaviour of turning over onto the sidewall during extreme cornering...

The 215/50's have a slightly taller side-wall than the stock size but are O.K. to mount on the 3's 6.5" stock rims.
 
#11 ·
ok, thx so i understand taht 215/50/17 will be ok on the stock 6.5 rim.

Thx for assuring me.
 
#12 ·
215/45 looks better and by nature has a stiffer sidewall than a 215/50. 215/45 is a more common size than 205/50 and 215/50 so you can find more tire options and a bit cheaper in price in that size.

[quote author=dmention7 link=topic=67149.msg1153583#msg1153583 date=1169007602]
AAA/BB/CC

A = Width of the tire tread in millimeters

B = Ratio of sidewall height to tread width

C = Wheel diameter

[/quote]

just to elaborate more so you can actually put those numbers to use, if you multiply the tire width by the aspect ratio, you can find the size of the sidewall.

so for example: 215/45/17
215 x 45% = 96.8mm which is the width of the sidewall.
 
#14 ·
215 will fit on a 6.5" wheel. so yes, a 215/45 will fit. i had those on my stock wheels.
 
#18 ·
ok so ive changed my order for toyo proxes 4 in 215/45/17 that will go on my stock rims.
thx for the quick answer
 
#19 ·
215/45/17 might goof up your speedo, you gotta keep the same series unless you change wheel size.
 
#21 ·
[quote author=flyrevs link=topic=67149.msg1159063#msg1159063 date=1169263146]
215/45/17 might goof up your speedo, you gotta keep the same series unless you change wheel size.
[/quote]

Both 215/50/17 and 215/45/17 are within 2% of the stock diameter (+ and - respectively), so your speedo will be affected by no more than that amount. It's probably not that accurate to begin with.
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top