How to Calculate the PERFECT Tire Stretch 

If you guys need help on some tire setups, check out our gallery! We have thousands of different matchups in there! bit.ly/2Ma4oca

*Normal stance stretches* *205/40* 8.5" wheel *215/35* 9.5" wheel *225/40* 10.5 wheel

“But officer alex from fitment industries told me how to do it”

I was running a 215/40/17 on my 17x10.5 on my 2007 Volkswagen Rabbit and I never had any problems 👌

*I'm not much of a stance or tire stretching guy, but I love the round tire look!*

Good stuff man. We appreciate all your hard work and knowledge.

Awesome work bro, thanks for your time and knowledge 💯

Exactly the video I’ve been waiting for...love you guys💜

before watching this video i was a little nervous about how my 225/40 18s came out on my 18x9.5s but now i feel better with only being at a stage 1 setup. it looks great but im glad there is minimal safety concerns (or so i hope lol)

If you guys will make a “stretch/meaty calculator” in your website; that would be great! But nice video, this was helpful! I’m on the meaty side tho. But stage 1 stretch looks tempting:)

If fitment industries themselves give a disclaimer to begin with, it's probably a stupid thing to do

My summer tires are STAGE -3 (225/50 17x7.5) and I still watch these videos.

Most informative FI vid thus far IMO. Thank you!

lmfaooo that disclaimer is why I love you guys

This is perfect! This video helped me understand tire sizing

A very interesting video indeed. Stretching isn't my thing at all, but your explanations of stages and the technical aspects were really interesting.

Been waiting for this for a while. TY.

Dude I was ready for some crazy ass equation, thank you...

I have 215/45 tyres on 18" by 8" wheels, and they are almost a perfect fit. 225 would better though, the Goldilock zone for that wheel size. Buy wheels to suit the tyre size you want instead of just making them fit. Unless you are more interested in looks vs performance. If you prefer the former, then don't complain when you crash.

Genius & Very Great Explanation, Thanks 🤗👍

Thanks and learned more in this video than all my self-research...

Crazy how long tire stretching has been around for. My dad used to stretch the hell out of tires on a set of 15x12 wheels back in 94' on his Toyota pickup truck.

I got 15 x 8 with 195 /50 15s and it’s a great look . Not too much stretch and I can still slam corners .

GREAT VIDEO AND INFO!!! YOU SIR, ARE A GOD!!!!!

This is qhat i was looking for. Finally lol. I have stock tires 265/70r18 tires for my silverado. I went to a 18x10 rim. So im gonna be stretching just a little bit

245/45 in the front and 275/45 in the rear on an 18/9.5 square setup. Got very slight stretch on the front and looks meaty in the rears 👍

Never expected to see one of my clips on here. Thanks guys! 1:10

215/35r19 on a 19x9.5 haven't had any issues as long as I keep my psi about 45psi with -12 degrees of camber. Sidewall ridin!

Video saved. This is good information...

What a coincidence that y’all dropped this cause I was wondering what I was going to run on my next set up 😂

I knew some real basics... but this is insane

Very helpful video thank you very much!

Would I be able to run a 265/70 (stock 06 Silverado 1500) on a 17x8 (the stock rim is 17/7) so the stretch shouldn’t be that big of a difference right?

My rule of thumb for stretching tires is to try not go with more than a 1/2" difference between the wheel width and tire width.

Fitment industry , I have 15x12's on a slammed F -150 and want to run a streched tire on my rim any tire size suggestions.

I subscribed to this channel.. I don't regret it.

Cool I learned something new.I’m a tire expert now.

My stock wheel is 6.5 and I’m looking at a 7 wheel is that half inch a big deal or should it be perfectly fine?

Thanks, my bmx is going to look sick on stretched tires😁👍

I have a 18 x 7 wheel currently and I just bought new enkei wheels that are 18 x 8.5. I’m keeping my recently bought tires that are 225/40/18. Would this be consider a “stage one” stretch? I’m not into stretching tires but I’m wondering if my tires would work (they are stated to work with 7.5-9 widths)

Came here for the comments section. Love the disclaimer at the beginning of the video.

What would you say a 215/50 on an 8.5 wide wheel? I love the setup and it's still meaty but has a tad bit of stretch I feel

What about a 265/35/22 on a 10.5 wide is that a stage 1 stretch or a straight up and down sidewall

Very helpful, looks like im going stage 3 meat with the track setup (if it will fit) 17x9 with a 255/40/17 tire

2019 Toyota sienna 20x10 Rolling on 245/45/20 is that consider a stage 1 Cause originally I was going to go with a 255/40/20 but tires do get more expensive. Let me know if I have a proper setup.

6:50 perfectly timed for the ads. To cut in XD!

I have a question. Im new to stretching tires... I recently bought a set of 18" te37 9j front and 10j rear for my Lexus is350 2007. A friend of mine advised me to use 225/45/18 on 9j and 245/40/18 or 255/40/18 on 10j. What size tires can I use for stretching ? and can I also us 245/45/18 on 10j ?

I adore this channel

I'm running a 225 35 on my 10.5 and a 235 35 on a 11.5

What do you guys recommend for a "meaty" setup for 17x12s and 17x10s?

Whoa I know the guy from the first video insert! It's an old video but I believe he still goes by the name of KEEK. Has a cool bagged Mk4 Golf nowadays :)

What is the proper setup for 205s on 15 Inchers for track purpose (best handling and grip) ?

The geek voice suites you so well. sounds the way you look perfectly.

Karate chop on articulate :)))...Man I've seen like stage 8 stretches in Japan lol

I've seen a lot of 225/40r18 on 18x9 wheels on your website and they are all quite stretched. I understand that 225mm = 8.8", but pictures show a much different reality.

He's an awesome teacher

I'm over here trying to get the big of a tire I can fit. 235/55 on a 6.5" wide wheel... I need road contact for traction. I would go wider but it starts to become jello when turning.

Oppps my 215/40 fell onto my 10.5 🙈

Great info.

I have r18 front 8j rear 9.5. how about put on- front 215/40 and rear 245/35 tires

How about a 215/70/15 on a 10" wheel

This was a very informative video but should have another disclaimer that changing the side wall and width of there tires there changing the rotation of there wheels which will throw the speedometer off on there vehicle if not done properly

What would be an perfect stretch for a 19 x 10.5 rim??what trie size?

What's suit best for 2019 honda fit wheels? Just asking for recommendations only.

also forgot to mention some tires look different than others my 275/35 nankang look more narrow than my 275/35 michelin which look more meaty.

We aren’t rolling fenders we are cutting them “next year tho”

I've got a Mitsubishi GTO, factory recommended Tyre size is 225/50/17 front and 245/45/17 rear. I wanna put 245/45/17 front & 265/40/17 rear. Basically getting wider tyres that fit my 8jj front rim and 9jj rear. Now I'll be driving 240 km/HR meaning 150 mph. I've heard sports cars tyres expand on high speeds so is it going to be good or bad getting wider tyres? Thanks.

On my C63 I've ran 305/35 on 19x10, a 275/25 on 20x10 (cracked a wheel), and a 285/30 on 20x10.5. Just got a set of bc forged 19x11 and deciding on tires right now

Giving stretch a “stage”

I apologize if this question sounds crazy I'm still learning. I understand you can stretch the width of a tire but can you stretch the diameter? My tire specs are 225/45/17. Can I stretch that on to an 18x8.5 wheel? If not, can I stretch it on to a 18x8 wheel? My tires are designed for 17x7 wheels but I really want an 18 inch wheel with a wider tire but nothing past 8.5. If anybody can help me with this I would appreciate it a lot. I'll even send a dollar to you on PayPal😂

Here's an idea if you don't know what to call it just called at GS basically means a grip stretch which sounds pretty simple and it doesn't sound weird just use the term grip stretch cuz you stretching the tire but the same time you still have that strong grip

I wouldn't run extremely stretch but I do want a little bit just because I think it looks clean. I think meaty tire setups can look clean too but I have a stock fender Z and I also don't want to throw off the weight/speedo potentially by running fat tires.

I have a 09 Lancer Gts 215/45/18 what do I do if I want bigger tires ??

Stage 2 for me I think lol, 235/40/19x10.5

I’m getting 20x10.5 ET30 and want to run tucked fitment with bags. Should I run a 275/30 or 255/30? Or what should I run?

Im thinking to change my Stock tire, currently 17x8.5 205/45-17 bridgestone potenza S001 into yokohama Novea AD08R 215/45-17. Is the stretch acceptable? Is it safe to the wheels? Need your opinion.

Some of the 4 wheelin coal rollin trucks around here seem to have found the tire stretch calculator 🤔

My brain hurts. 🙃

And that is for my Honda Civic Hatchback Sports Touring 2020. No suspension modification.

This should be a requirement for graduation in high school math, Ged, sat's, the bar, mcat's, etc. Loved it!

2:44 *Me trying to explain how close the race was to my friends

That's where u like living in Germany .... Not only all those inches and mm and stuff but the law going to it as well u dont need to think about an 205 / 40 on an 8,5 wheel cause our law says that 215/40 to an 8,5 '' wheel is the max + the fact that ur new tire size need's to match up with the old one so ur speedometer doesnt tell u an wrong number u are allowed to go 100 km/h when ur speedometer says ur going 104 km/h but u are only allowed to go 100 km/h when ur speedometer says ur going 99 km/h so law can get u in trouble thinking about tire sizes as well

im running 205/45/17s on my 17x9s on my mk4 jetta with coilovers, it is mint

Hi. What would be a good suggestion on these 275/35 zr18 99y xl rear wheel and front is 245/40 zr18 97y. I'm looking to stretch them but unsure witch would be best. Possibly stage 2. What would that be? Love from North Wales! 🤟 Any help would be great

So I would be a stage 4? 215/35 18 on a 10.5?

How am i running 215-35-18? It's max stretched out tough" 🤣

Im planning to get a 16" 8j et9 on my suv. I wanted to use my stock tires which is 215/70r16 is it ok to use? Thanks.

Its true Alex, this do common that the installer very often forgetting to inform the customer that stretching is outside the waranty of the tire..

im a stage 2 meaty

You explained how and now you should explain why...

I just want to know if 130/60-13 will be good for 3.00 rim? The said tire size is recommended for 3.50 rim. Thank you very much.

I want the Stage O straight up and down look with the sides walls as close as possible to the same height on the LS400. Comfort is most important to me. The LS will be lowered but not slammed. Rims are 19x8.5 and 19x9.5 Tire setup choice and these are the tire size I have access to: 235-40/19 and 245-40/19. Sidewall difference is 4mm (245 is taller tire) 225-40/19 and 255-35/19. Side difference is only .75mm so they are basically the same height and diameter. My worry is the 225 on the 8.5 rim will not give the straight up and down look. Thr 235 and 255 will be a good setup also with a 3.75mm difference in side amd .3mm difference in diameter. However what i have access to they are different brands and different designs. Your thoughts please!! Thank you in advance for all your help.

soon people gonna be putting motorcycle tires on their 17x10s lmao

DUDE 315/30? on a 19x14? WHO TF IS RUNNING THAT 🤣🤣

I had 245/45/18 on my xxr 521 18×10" I liked the stretch I had. I'd do it again

Thank you for posting this. I want 18x9.5 +38-+42 or 18x9 +33 wheels, but I don't want to go beyond a 245 tire width. Trying to be as close to stage 0. Which by the math is the perfect width for a 9.5 inch wheel. But I've seen 245 40 18s in 9.5 appear stretched...on the OEM 8.5 wheel, that tire appears stage 0. In most people's setups it appears that a 265 35 tire is flush for 9.5 inch wheels...

Guess I have stage 1 meaty

How to perfectly stretch your tires: Step 1: You don’t , you don’t stretch your tires 😑

So I just got some rims from you guys and I'm struggling with tires I know you guys sell tires but I wanted to know what tires would match with 18 × 9.5 35mm sized rims? I'm looking for a meaty setup

It all makes sense now!!!!!!!