225/45/17 vs. 225/40/17 on Stock Rims

[Maestrokneer]

Hey Guys,

So I know there are a TON of threads about tire size....but....none of them answered my question so here's one more.

I've got a killer deal on some Bridgestone S-03's (my buddy works for Bridgestone), and have heard that you can fit a 225 width on the stock rims without rubbing, but wanted to find out what the sidewall height you all thought was best.

Since it's a wider tire, using the same sidewall height would increase the diameter of the wheel/tire by 4.5cm. So I know this is probably negligible, but wanted to see what you guys thought about dropping down a size to the 40 sidewall height making the tire about 6cm smaller. This would make the speedometer read faster than I actually was going (barely, but every little bit helps avoid a speeding ticket), and might prevent rubbing.

Any thoughts? Stick with the 45? or drop down to 40?

 

[hello2000]

MSPRO seems to not have problems with 225/45/17 tires

http://www.msprotege.com/forum/showpost.php?p=1652818&postcount=3

 

[MSP#735]

yea im thinkin about gettin some 225/45/17 also....more pics would kick ass thanks guys!!

 

[Saban]

Dont know myself, but it would be nice to have some sort of massive database that could list what 225/45/17 tires fit on our cars w/o rubbing, fender rolling, etc..

I know from reading old posts that some tire manufactures make their 225/45/17 tires wider than other tire manufactures.

 

[Maestrokneer]

MSPRO seems to not have problems with 225/45/17 tires

http://www.msprotege.com/forum/showpost.php?p=1652818&postcount=3

Yeah...I saw that thread. But my question was not whether 225/45/17's would work, but rather would it be better to go to the 225/40/17's?

Anyone have an opinion?

 

[ND4MSP]

does anyone make 225/40's? I always wondered but never seen this size around

 

[Maestrokneer]

LOL.....I guess a search on tire rack could have answered this question a lot faster.


http://www.tirerack.com/tires/Compare1.jsp?width=225%2F&ratio=40&diameter=17&startIndex=0&search=true&pagelen=20&pagenum=1&pagemark=1&RunFlat=All&x=63&y=11

I just want to know who actually voted for the 215/40/17's? Thanks for being a voice of reason ND4MSP.

 

[FlyinMSP]

does anyone make 225/40's? I always wondered but never seen this size around

The only one I know of is the Nitto NT-555. Other than that, I think that Pirelli also makes one -maybe the P-Zero Nero summer?- but is atrociously expensive!!

225/45/17 will fit in general but some will probably rub too much as tire size vary a lot from one company to another. For ex. the other day I saw two 225/45/17 side by side and one was much wider than the other (the Goodyear F1 GS-3 was nearly 1/2" wider than the Toyo Proxes T1-R)
Last year, I've used Toyo PX4 with very little rubbing...

 

[girth]

Dont know myself, but it would be nice to have some sort of massive database that could list what 225/45/17 tires fit on our cars w/o rubbing, fender rolling, etc..

I know from reading old posts that some tire manufactures make their 225/45/17 tires wider than other tire manufactures.

Totally agree - we really need some sort of list of brands that will work in 225/45. For sure we know those Falkens that Amy has will work, and I saw a thread the other day with some other brand that WOULDN'T work but I forgot the brand of tire. I need new tires next summer and would like to go 225/45.

 

[MrDiggler]

I didn't realize that a 225/40/17 wasn't readily available. That would probably be the perfect size. Damn!


Also, as far as sidewall height goes, the '40 series' isn't necessarily a sidewall height. The way it's supposed to work, is that the series (or aspect ratio) is a percentage of overall tire width. So, a 215/45 would be 215mm * 45% = 101.25mm sidewall height and a 225/40 would be 225mm * 40% = 90mm sidewall height. I'm guessing the official sidewall height must be bead to tread, not just what we see when it's mounted on the rim.

In the real world though, I'm pretty sure that manufacturers only loosely stick to this standard and that any real comparisons would need to be made between different sizes in the same model of tire.

 

[FlyinMSP]

Yep! The only way to be really sure is that you bring a measuring tape with you when you shop for tires. Even the official spec sheets from the manufacturers are not very precise