Official YARIS Wheel & Tire Guide

[barebonedvitz]

Originally Posted by Black Yaris

+42

ty

[Doc Zaius]

Originally Posted by eTiMaGo

the most beautiful, wondrous and amazing wheel and tire size calculator ever:

http://www.rims-n-tires.com/rt_specs.jsp

That is pretty cool! I like the real-time cross-section of the wheels & tires.

[hasher22]

Hey peeps i gotta a question.....well i baught my wheels, they are still at the painters.

Though im stuck on what the hell what profile tyres to get. Whatever u wanna call it.

I know it says 205/40/17...............i get the 40/17 part

but question is with the 195/205/215/225 and so on......is this the tyre width??? or how "skinny" the tyres are from rim to whatever. Sorry i cant make the question clearer....so i photoshopped some tyres....weeeeee

1 or 2?

[eTiMaGo]

the first number is #2 in your picture. Then the second number (40), which corresponds to number 1 in your picture, is the percentage of the tire width... confused yet?

Go look at that site I just posted, play around with it, it will clear up a lot of things

[hasher22]

Thanks....that was cleared some things up like u said

Ok well this is what i want;

The wheels i baught are 17/7.5/40

Would this be a good tyre fitment..?? 205/30/17 since i want the "number 1" (in the picture i posted) to be thin to make the wheels look bigger.

[Doc Zaius]

Hey Hasher... ok... when talking about wheel sizes, you usually only refer to their diameter (17 inches) and their width (seems like 7.5" in your case). Not sure where you're getting the "40" number from for the wheel. So I'm guessing your wheel is 17 x 7.5, yes?

So for tires, the main goal is to try to maintain the same overal diameter as your original tires. So if you go with a bigger wheel, you need a smaller sidewall so overall, everything stays the same. While putting on a 30 series tire (who's sidewall is 30% the width of the tire) may look good to you, it will be too small a tire for the car, and your speedmeter will be off. If you must-must-must have a 30 series tire, you'll need a wider tire... like a 225 or something. For a 205mm wide tire, a 40 series profile is perfect.

Good luck!

[Sabretooth]

+35 offset work ok with some 215/50/16's lowered with Tanabe DF's?

[Black Yaris]

if you want them to rub your fenders on bumps, tire is too wide to run with that offset with DF's

[Razr]

Theoretically speaking* my 215/45R17's are 3.8% larger than the OE fitment, but 4+ months and 6000+ KM down the track I've no problems at all to report.

Even when fully loaded for a 2500KM journey last April (giving it a ~2" drop) I only experienced two light rubs in the front - but that was only when hitting some pretty nasty bumps at 140+ KM/hr :)

Speedo seems bang-on to me as well, so I'm guessing the stock calibration is on the low side to begin with. Ride quality is 95% as good as the OE tires, but handling and general stability is much improved of course. I will stick to this size when buying tires again fer sure!

* I say Theoretically because it all depends on your weght load vs. infaltion pressure of course. It's pretty easy to add a couple of % to your rolling circumference by increasing the tire pressure.

[Black Yaris]

Originally Posted by Razr

Even when fully loaded for a 2500KM journey last April (giving it a ~2" drop) I only experienced two light rubs in the front - but that was only when hitting some pretty nasty bumps at 140+ KM/hr :)

but that was in the rear only, the problem lies in the front

[Razr]

Not so - the front passenger seat was fully loaded, as was the drivers seat :P

The drop was pretty much the same front & rear. On top of that, both front rubs happened under heavy (albeit late - it was night) braking, so even more weight would have been distributed to the front.

[brickhardmeat]

BUMP for N00bz

[Edd]

Some of you don't seem to be quite clear with what the measurements are. It usually goes tyre width/aspect/rim diameter, in mm/%/inches, eg 185/65/16. Here's a diagram.

[kurokoma-kun]

OK. please, please don't flame me for this question. I have searched and read and I do understand what the x/x/x numbers mean, but...

Why is 195/60/15 not recommended size?

My reason for asking is I just bought 15x6.5 wheels, and have been trying to find 195/55s, but no local shop has them in stock! Another option is Discount Tire Direct because I have a $50 coupon, but the 55s are MUCH more expensive than the 60s!

I'm guessing the 60s will be ok, even tho speedo will be off a bit, just wanted to run it by the experts...

[brickhardmeat]

Originally Posted by kurokoma-kun

OK. please, please don't flame me for this question. I have searched and read and I do understand what the x/x/x numbers mean, but...

Why is 195/60/15 not recommended size?

My reason for asking is I just bought 15x6.5 wheels, and have been trying to find 195/55s, but no local shop has them in stock! Another option is Discount Tire Direct because I have a $50 coupon, but the 55s are MUCH more expensive than the 60s!

I'm guessing the 60s will be ok, even tho speedo will be off a bit, just wanted to run it by the experts...

60 is too much side wall babe

I went with 205/50/15

edgeracing.com may have exactly what you are looking for or you could go 205/55/15

[kurokoma-kun]

Originally Posted by brickhardmeat

60 is too much side wall babe

Yeah, you're right. I know you are supposed to maintain stock wheel/tire diameter so as not affect suspension geometry. But I was not understanding clearly how much increased sidewall height affects cornering. That extra flex supposedly gives better ride but makes for sloppy cornering, exact opposite of what i'm going for.

Was just trying to save money again--dayam, why am I so cheap? But it turns out there are LOTS of good 205/50 choices so that what I'm getting! Springs/shocks next!

[brickhardmeat]

Originally Posted by kurokoma-kun

Yeah, you're right. I know you are supposed to maintain stock wheel/tire diameter so as not affect suspension geometry. But I was not understanding clearly how much increased sidewall height affects cornering. That extra flex supposedly gives better ride but makes for sloppy cornering, exact opposite of what i'm going for.

Was just trying to save money again--dayam, why am I so cheap? But it turns out there are LOTS of good 205/50 choices so that what I'm getting! Springs/shocks next!

205/50/15 is my #1 choice on this car. It will only slightly thow the speedo and the odo at 10000 will likely read 10300 not enough to make any difference for me. It just looks right to me. you will want a good drop though because you'll be dealing with an extra 1/2 inch of wheel gap so I would suggest DF's or Coilovers or Tein springs. Just something to consider. I got my Basics today and I am drooling over them right now.

[Edd]

Heh, you should go extremely the other way, so when you go to sell "Yaris, 7 miles, excellent condition, 5 years old".