14" or 15"

[KrazyDawg]

When you purchased your Yaris, did it come with 14" or 15" tires? My Yaris came with 15" tires when I purchased it from Enterprise. On AmericasTire/Discount Tire they list 14" as the OEM size and 15" is listed as a plus size, however TireRack lists both 14" and 15" as OEM options.

Which size would be more fuel efficient with LRR tires?

[hazzy]

Here in Australia we have three models
YR- came stock with 14"OEM's with a 1.3L Engine
YRS- 15" OEM i with 1.5L
YRX- YRS with a bodykit and other extras

[47_MasoN_47]

My 09 sedan came with 15" steelies OEM. I upgraded to 16" later though. I would think (as long as you don't add a lot of weight) that a larger wheel would be more efficient, allowing further distances to be crossed with less RPM.

[cali yaris]

that a larger wheel would be more efficient, allowing further distances to be crossed with less RPM.

Not really. The part about the rpm's is only true if the tire is taller, meaning the outside diameter is more. This will also make your speedometer and odometer inaccurate, which will make your mileage calculations incorrect.

[47_MasoN_47]

Wouldn't the overall OD increase with larger wheels though?

[why?]

Toyota dealers don't even have 14" wheels listed as ever coming on the Yaris. I think they only came on 2006 & 2007 Yari.

[.Kevin.]

pretty sure my stocks were 15 steels

[why?]

Wouldn't the overall OD increase with larger wheels though?

Also, the larger the wheels and tires are, the more extra force they will take to rotate, and this can add up to lower gas mileage.

I think the old thought that I have seen a ton is that for every added 1 lb on the edge of the tire, wheel, it is like 4 lbs above the suspension.

[landrym28]

My 07 sedan base model had 14". I think with the 08's and newer, the base models come with 15".

[M4One]

I think it depends on the country and model. My 2007 Canadian Yaris hatch was 14" stock, but I think in the U.S. it might have been 15".

[thebarber]

US models almost always got 15" wheels/tires...

canadian non-RS models came w/ 14's from 06 to early 08 models....

my 07 came w/ 14" steelies and 175-65-14's....about 3.5% shorter than 185-60-15's, btw

[chrisj]

Mine came with 14's.

[kimona]

I thought all US models came with 15" wheels as standard.

BTW, my car's speedo (with 185/60/15's) was innacurate right out of the box. Now, with the taller 205/50/16's the speedo is dead on, and the tripmeter is accurate right to the 10th of a mile.

[Red Horse]

15" in US, in other country they made it cheap so they use 14"

[why?]

I don't know if I call it cheap, I mean my 14"'s are definitely not cheap, and I am not the only one with them.

[yarisugi]

OEM 14" steelies w/hubcaps on base model

http://www.yarisworld.com/forums/attachment.php?attachmentid=35161&stc=1&d=1279089738

[detroiter]

Man that thing is low lol

[thebarber]

http://i22.photobucket.com/albums/b339/dabarber/yaris/lowering/yarisspring2009008.jpg

[Jem_hadar]

Yup, my (Canadian) 07 Yaris Hatchback LE came with 14s.


(time to replace these babies too... down to 2mm... yikes)

[djct_watt]

Some yarii have 14's, some 15. Look on the tire xxx/yy/Rzz, zz representing wheel size.

And in terms of OD effect, there is none unless you alter the overall wheel size by choosing the WRONG size tire, and you could do the exact same thing on any size wheel. The way it works is that if you have a 14 inch rim, your tire sidewalks will be taller than the 15. In terms of efficency, assuming tire performance and width are equal, the smaller wheel is always more efficient. Tire weight is all in the tread, which spans the same circumference. The wheel weight, similarly, is carried on the outer edge of a wheel. Rotational Inertia (force required to accelerate a wheel) = mass x radius^2. It's why all race cars use the smallest wheels possible that fit over the brakes. If a sports car has 18" wheels, it's not because it's prettier, it's because the brakes are 16inches with a set of giant pistons on top. Eco-cars alike also do the same, but they,unlike sports cars, have tiny brakes to match their tiny power.

[firemachine69]

I got 14 inchers. This was only for 2007 IIRC, and only if you went with a base model or the "convenience B" package.

[thebarber]

I got 14 inchers. This was only for 2007 IIRC, and only if you went with a base model or the "convenience B" package.

only way to get 15's in canada for 07MY is by buying an RS