I'm wondering if anyone is running 215/35/17's or are most people running 40's? I know it will be a harsh ride if I were to go with 35's on 17" rims. I'm just wondering who has this setup and if you can tell me personally how harsh the ride is.

 

bump

 

The wheels+tires together as a whole would probably look a bit odd. The correct (recommended) sidewell size to use with 17's are a 45. You're looking at a 10mm difference. Would look like a shoebox on skateboard wheel's IMO. If it were me, i wouldn't try it, but if you're lookin for a low profile tire look and don't wanna speed the extra bit for 18's then post some pics up when ur done, i'm curious of how it would really look. Plus if i'm not mistaken, you'd have some speedo corrections to make.

 

The width and height depend on the width of the rim. most common application is 205/40/17. that size is the same diameter as the stock rim and tire.

 

Yeah, I know the speedo would be off a bit but I wasn't worried too much about that adjustment. I know most people here who are running 17's have 40's which is good too but the calculations mean that my ride would be sitting and inch higher than it is now on my stock 15's...which I don't want. I know with the 35's the ride will be about an inch lower...which i DO want. Just trying to decide on a happy medium between low stance and comfort.

 

bumpity bump bump...one more try

 

I had the stockers alongside the Works there is no way the wheel is an inch taller. butwhatever you want.

 

How much higher is the 17's than the stock 15's then??

 

a 205/40/17 is actually a tiny big shorther than a stock 15" setup on a xB. If you ran a 215/35/17 it would look goofy, unless the box was laying body.

 

Thanks LilBlkBox, that's exactly what I wanted to know. I will definitely be going with 215/40/17's. Thanks a lot for the help guys.

 

i would run a 205 40 17, ive had 17;s, but do to other circumstances i had tres that were 215 40 17, which were fine and all but had too much of a squared off sidewall for me, and that was on both 17x7 and 17x7.5's that i had

brent

 

Go with the 215/40/17's....Thats the setup I'am running and I love it. I aslo have the 2" Gold-Line Drop. Enjoy and make sure you post pics when done...Here's mine with the that setup:





Hope this helps....

 

yellosub are running on 17x7 or 17x7.5?

 

I'm running 17 x 7" in a 40 offset...

 

Im running a 215/45R17 on a 17.5 wheel.

basically what you are looking to do is go plus 2. That means that 0 would be stock .. 185/60R15. Plus 1 would be a 195/50R16. And plus 2 would be a 205/40R17 to stay close to stock. Although, you will find many variations in the 17 inch size. Some run 205/40 .. 205/45 .. 215/40 ... and the largest 215/45. There are also different sizes in 18s too.

To run a 205/35R17 would defeat the purpose. Not to mention that it would be hard to find a tire in that size that doesnt cost an arm and a leg.

 

late in coming into this thread, but you guys seem to be posting a bunch of inaccurate information.

first of all. the difference in sidewall between a 215/35/17 and 215/45/17 is NOT 10 mm. it is actually 21.5 mm taller (aka almost 1 inch) since the second set of numbers on a tire is actually the percentage of the first number. for example, 215/35/17 has a sidewall of 75.25 mm, while 215/45/17 has a sidewall of 96.75.

also, the correct size tire for a 17x7.5-17x8.5 wheel would be a 215/40/17. this gives you the exact same diameter wheel/tire combo as stock. of course you can upsize to 225/40 and whatnot, but your mileage will vary.

 

IMO I prefer to go a little bit bigger than stock for two reasons

First, it fills up the fender gap better and that essentially is the reason for lowering a vehicle.

Second and most importantly in my opinion, is that when an xB is going 75-80 mph they are pushing close to 4k rpms and that kills gas mileage. If you go with a bigger tire then it will be at less rpms at the same speed. This goes opposite for a smaller tire. So you will be at like 4500 rpms going 75mph.

I had an s10 with tires that were smaller than stock and it sucked because my speedo would say 70 and I would be going a little over 60. So the most I would want to run this truck at for a long period of time is 80 on the speedo which is 70 in real life.

185/60/15 = 23.7"
205/40/17 = 23.5"
215/40/17 = 23.8"
215/35/18 = 23.9"

 

as you mentioned, this is an illusion. by changing the tire size you throw off the speedometer. of course over a long period of time (aka 10k miles) you can "save" 1-200 miles on the odometer by running a larger tire.

the figure remaining accurate in the case of larger or smaller tires is really only the RPMs. you would need to judge your actual speed by looking at the engine speed, and not the speedo.

 

Good luck shoe-horning a 225 in there.

 

I was contemplating a 215/40/17, but wanted the extra meat to feed the potholes, so I went with a 215/45 (17x7 wheel with 40mm offset), but even before lowering it, i'm rubbing lightly in front. I'm dropping the car tomorrow, as well as installing the sway bar, strut bar, the one ton garage shim, and 5mm spacers all around. I have to shave down a portion of the splash shield in the back of the front wheel, and probably pound in a bit of the inner fender in the same place, because there's light rubbing there too. All this before the drop, I got the fingers crossed!