Cybertruck Tire Rub / Maximum Tire Clearance Calculator -- Claude AI Built

[10killer75]

I have 295/45/24 Nittos with 24x10 Vossen with 25 offset. My MRP is 19.24 which if I’m understanding correctly should not rub, but I am currently looking into some turn noises that sound like rubbing.

FWIW I'm running a 305/55/22 Toyo Open Country 3 EV, 22x9.5 Vossen with 30 offset and get no rub at all.

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[BlRazytruck]

At ride height? Or at full suspension compression (bottom out aka bump ) . Also at full wheel lock/ turn ? That would be the worse possible situation for tire clearance . Full bump (suspension bottomed out) + wheel turned . Off roading will see that condition or big pot hole / curb/ speed bump . Alignment will also affect where the tire will ultimately sit . On top of all that the rubber tire can deflect too a bit . It might bulge during hard off roading or with low tire pressure. cyber truck has about 12 inches of wheel travel so make sure the tire clears at FULL BUMP and with steering locked.

I’m still working on diagnosing the noise, but its on low mode at full turn. Car is getting wrapped now, so don’t have access to it. More info to come.

 

[BlRazytruck]

FWIW I'm running a 305/55/22 Toyo Open Country 3 EV, 22x9.5 Vossen with 30 offset and get no rub at all.

Thanks for replying. Thats interesting given your build is larger in every regard. Except the offset. Maybe I need to add spacers. Not sure though.

 

[daddyd]

I went down the rabbit hole last night and need your help. I've been working on a little project that I hope will be useful for our community, and I need your help to test and validate it.

What is it?
I've created a Cybertruck Rub Calculator - a React app that uses the Pythagorean theorem to predict whether a tire will likely rub against the truck body. Let me tell you, these AI models are great, but also I've learned that I need better prompt engineering skills. I had to rewrite the prompts about 50 times before I could get a working product. Too many hallucinations from the AI model had me chasing rabbits.

How it works
The calculator estimates the Maximum Rub Point, which I believe to be around 19.85 inches. It takes into account tire size, wheel size, and offset to make its predictions.

What I've tested so far
I've run a couple of tests with the following setups:

1. 325/60-20 tire with a 20-9 wheel and 18 offset Result: Rubbed against the back of the headlight
2. 35/12.5-20 tire with a 20-9 wheel and 18 offset Result: Just perfect, would barely rub (fixable with a little heat gun action)

Why I need your help
Here's the thing - before starting this project, I had no idea what an offset was! While I've done my best to ensure the calculations are accurate, I need more data points to validate my work.

How you can help

1. Try out the calculator: https://cybertruck-b9ay2yxug-bkb13s-projects.vercel.app/
2. Input your wheel and tire specs
3. Compare the results with your real-world experience. Please let me know if the front and rear peek is accurate as measured from the top of the fender.
4. Let me know if the predictions match what you're seeing on your Cybertruck

A bit about the project
I put this together on a whim last night, learning how to create a React app with Claude (an AI assistant) and how to deploy it on Vercel. It's been a fun learning experience, and I hope it can be useful for our community.

Your feedback will be invaluable in refining this tool. Let's work together to make tire and wheel selection for our Cybertrucks a bit easier!

Thanks in advance for your help!

https://cybertruck-b9ay2yxug-bkb13s-projects.vercel.app/

Maybe I don’t understand offset that much either. Because what if it’s a negative offset? My buddy got wheels that were -24 offset. 20x10 rims on stock cyber tire, and they rubbed bad and popped his air suspension. Had about 2 inches of poke. How do you enter a negative offset number into your formula? It doesn’t allow me to do minus symbol

 

[Bkb13]

Maybe I don’t understand offset that much either. Because what if it’s a negative offset? My buddy got wheels that were -24 offset. 20x10 rims on stock cyber tire, and they rubbed bad and popped his air suspension. Had about 2 inches of poke. How do you enter a negative offset number into your formula? It doesn’t allow me to do minus symbol

I’ll double check the negative issue when I get a few minutes. Do you know what tire size he was using?

 

[daddyd]

I’ll double check the negative issue when I get a few minutes. Do you know what tire size he was using?

He was using the stock tire. The 285/65/20 and got a rim that was an offset of -22. It gave it like 2” of poke (the green one on left)

 

[daddyd]

I went down the rabbit hole last night and need your help. I've been working on a little project that I hope will be useful for our community, and I need your help to test and validate it.

What is it?
I've created a Cybertruck Rub Calculator - a React app that uses the Pythagorean theorem to predict whether a tire will likely rub against the truck body. Let me tell you, these AI models are great, but also I've learned that I need better prompt engineering skills. I had to rewrite the prompts about 50 times before I could get a working product. Too many hallucinations from the AI model had me chasing rabbits.

How it works
The calculator estimates the Maximum Rub Point, which I believe to be around 19.85 inches. It takes into account tire size, wheel size, and offset to make its predictions.

What I've tested so far
I've run a couple of tests with the following setups:

1. 325/60-20 tire with a 20-9 wheel and 18 offset Result: Rubbed against the back of the headlight
2. 35/12.5-20 tire with a 20-9 wheel and 18 offset Result: Just perfect, would barely rub (fixable with a little heat gun action)

Why I need your help
Here's the thing - before starting this project, I had no idea what an offset was! While I've done my best to ensure the calculations are accurate, I need more data points to validate my work.

How you can help

1. Try out the calculator: https://cybertruck-b9ay2yxug-bkb13s-projects.vercel.app/
2. Input your wheel and tire specs
3. Compare the results with your real-world experience. Please let me know if the front and rear peek is accurate as measured from the top of the fender.
4. Let me know if the predictions match what you're seeing on your Cybertruck

A bit about the project
I put this together on a whim last night, learning how to create a React app with Claude (an AI assistant) and how to deploy it on Vercel. It's been a fun learning experience, and I hope it can be useful for our community.

Your feedback will be invaluable in refining this tool. Let's work together to make tire and wheel selection for our Cybertrucks a bit easier!

Thanks in advance for your help!

https://cybertruck-b9ay2yxug-bkb13s-projects.vercel.app/

So according to your 325/70 r20 test with 18 offset, you said it rubbed on back of headlight. Your test put the rub point at 20.04”.
I want to run 35x12.5 r18 with 18x9” rims with a 0 offset. The test put it barely more than your test that you said rubbed and mine would be 20.16”. My question is it is possible to run my setup with some easy trimming or modifying of the plastic inside the wheel well? Or would you not recommend it at all and just get a different size tire to make it fit within your formula?

 

[deadmanneverdies]

Anyone run 37/12.5/20 on stock core wheels with 1.5 inch tsport wheel spacer? I wonder if any rubbing with the upper control bolt and the rear arm?

 

[petercyber]

Hi there Bkb13, have you made any adjustments? I have 325/65/18 on 18/9.5 and it rubs

 

[Cyberbeard]

Hi there Bkb13, have you made any adjustments? I have 325/65/18 on 18/9.5 and it rubs

what offset?

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