225/45x18 on a gen 2

myleshouston · 09-14-2009, 04:59 PM

hi just wondering if 225/45x18 tires will fit on a stock gen 2 without rubbing or throwing off my speedo too bad? thanks

badazz · 09-14-2009, 06:14 PM

i got 225x 40 r18 on my box. no rubbing and rides slick as glass

Grasschopper · 10-09-2009, 11:30 AM

When I bought my 18s from Tirerack.com they suggested 235/40R18 tires....now it will soon be time for new tires so I have been doing some shopping and they now default to suggesting 225/45R18 tires. The same tire is quite a bit more expensive in the 225/45R18 but there are a couple of other options that look interesting so I was thinking of going with one of them.

With the 235/40R18 my speedo is very close +1-2 MPH if those road side radar "your going XX MPH" signs are accurate which I believe them to be judging by the GPS based cyclocomputer on my bike.

So to answer your question I think 225/45R18 would probably be right in regards to the speedo...narrower than what I am running now but the ratio is up 5% so it should offset the narrower width.

xbsrt4 · 10-12-2009, 08:11 PM

For the 18's im about to buy from tirerack, they recommended 215/45R18's?

But thats with a 18 7.5 rims.

Padanky · 10-12-2009, 08:18 PM

This link really helped me out with my choice. Tire Dimensions Made Simple - Discount Tire

xbsrt4 · 10-12-2009, 08:26 PM

Nice Chart, never knew they had that.

Thanks

Padanky · 10-12-2009, 10:49 PM

I just found it today^^^

XBinRochester · 10-13-2009, 06:13 AM

Quote:

Originally Posted by badazz

i got 225x 40 r18 on my box. no rubbing and rides slick as glass

What drop do you have?

Grasschopper · 10-13-2009, 07:05 AM

Interesting chart that says I shoul dbe going faster than my speedo says when by all accounts I am actually going slower...so what does that mean?

marty2495 · 10-28-2009, 07:32 PM

i ahve 225/45x18 and they fit perfect , but my box isn't lowered yet.it might rub just a bit when lowered but it should be fine.

and the width is 7.5

badazz · 10-28-2009, 08:22 PM

Quote:

Originally Posted by XBinRochester

What drop do you have?

Im running Tanabe DF210 which got me about a 2.5" drop

Century · 10-30-2009, 11:49 AM

Quote:

Originally Posted by badazz

i got 225x 40 r18 on my box. no rubbing and rides slick as glass

Hey Badazz, could you show us some pics of the back of the car, and the front please? Those look good BUT we can't actually see how staggered they are. I am planning on getting 18's as well.

I thank you beforehand =)

badazz · 11-04-2009, 04:22 PM

Here are a few angled shots from the side. I probally could have gone a little wider in the rear to make the tire really flush with the rear fender but it would prevent me from rotating tires front to back. The rear tires sit a little in from the outside of the car but it still looks awsome.

Hope these help.

ocotillo · 11-04-2009, 08:47 PM

Quote:

Originally Posted by badazz

Here are a few angled shots from the side. I probally could have gone a little wider in the rear to make the tire really flush with the rear fender but it would prevent me from rotating tires front to back. The rear tires sit a little in from the outside of the car but it still looks awsome.

Hope these help.

If you want the rears to sit flush you need spacers.