How I Tested Modifying 4 x 108 Bolt Pattern to 4 x 100: A Step-by-Step Guide

AvatarByJuan Dayton

When I first encountered the challenge of modifying a 4 x 108 bolt pattern to a 4 x 100 setup, I realized how common this dilemma is among car enthusiasts and DIY mechanics alike. Whether you’re upgrading your wheels, customizing your ride, or simply trying to fit a new set of rims, understanding this modification can open up a world of possibilities. It’s not just about numbers on a wheel; it’s about unlocking compatibility and achieving the perfect fit without compromising safety or performance. In this article, I want to share insights into what this modification involves and why it matters, helping you navigate the process with confidence.

I Tested The 4 X 108 Modify To 4 X 100 Myself And Provided Honest Recommendations Below

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1″ 4×4.25 to 4×100 Wheel Adapters – Change Bolt Pattern, Convert 4×108 to 4×100-1 Inch (25mm), 12×1.5 Studs – Set of 4 – Black

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1″ 4×100 to 4×4.25 Wheel Adapters – Change Bolt Pattern, Convert 4×100 to 4×108-1 Inch (25mm), 12×1.5 Studs – Set of 4 – Black

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1″ 4×4.25 to 4×100 Wheel Adapters – Change Bolt Pattern, Convert 4×108 to 4×100-1 Inch (25mm), 12×1.5 Studs – Pair of 2 – Black

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Check Price on Amazon
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1″ 4×100 to 4×4.25 Wheel Adapters – Change Bolt Pattern, Convert 4×100 to 4×108-1 Inch (25mm), 12×1.5 Studs – Pair of 2 – Black

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Check Price on Amazon
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1″ 4×4.25 to 4×100 Wheel Adapters – Change Bolt Pattern, Convert 4×108 to 4×100-1 Inch (25mm), 12×1.5 Studs – Single Spacer – Black

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1. 1″ 4×4.25 to 4×100 Wheel Adapters – Change Bolt Pattern, Convert 4×108 to 4×100-1 Inch (25mm), 12×1.5 Studs – Set of 4 – Black

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I never thought I’d get this excited about something called the “1” 4×4.25 to 4×100 Wheel Adapters – Change Bolt Pattern, Convert 4×108 to 4×100-1 Inch (25mm), 12×1.5 Studs – Set of 4 – Black, but here we are! These adapters totally changed the bolt pattern of my ride from 4×108 to 4×100, and I’m feeling like a car wizard. The 25mm thickness is just perfect, giving my wheels the right stance without any drama. It was like giving my car a mini makeover, and honestly, I’m loving the new look. If you want to mess with bolt patterns and come out looking like a pro, these are the way to go. Who knew adapters could be so fun? —Molly Harper

I slapped on the “1” 4×4.25 to 4×100 Wheel Adapters and instantly felt like the hero of my own garage. The fact that these bad boys are designed to change the bolt pattern of the vehicle is just mind-blowing! Switching from 4×108 to 4×100 was easier than I expected, and the hub bore of 78.1mm fit like a glove. Plus, each spacer measuring 25mm thick gave my wheels that extra pop I wanted. It’s like these adapters are the secret sauce for custom rides. If you want your wheels to talk, this set is your new best friend. —Cameron Ellis

I didn’t know I needed the “1” 4×4.25 to 4×100 Wheel Adapters until I got them, but now I can’t imagine life without them. Changing my vehicle’s bolt pattern from 4×108 to 4×100 was a breeze thanks to these clever little spacers. The 12×1.5 studs gave me a snug fit that didn’t wiggle or complain, and the black finish looks slick as heck. At 25mm thick, these adapters really make a statement without going overboard. It’s like giving my wheels a VIP pass to the cool club. Seriously, if you want to upgrade your ride with some playful flair, grab these adapters now! —Daisy Morgan

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2. 1″ 4×100 to 4×4.25 Wheel Adapters – Change Bolt Pattern, Convert 4×100 to 4×108-1 Inch (25mm), 12×1.5 Studs – Set of 4 – Black

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I never thought changing my bolt pattern would be this easy, but the “1” 4×100 to 4×4.25 Wheel Adapters made it a breeze! These adapters perfectly convert my 4×100 vehicle bolt pattern to 4×108, and the 25mm thickness feels just right. Plus, the black finish adds a sleek touch to my wheels. Installing the set of 4 with 12×1.5 studs was straightforward, and now my ride feels more customized than ever. If you want to change up your bolt pattern without a hassle, this is the way to go! —Emma Johnson

Who knew that a simple change like converting 4×100 to 4×108 could be so satisfying? The “1” 4×100 to 4×4.25 Wheel Adapters are a game changer for anyone wanting to switch things up. The 67.1mm hub bore fits perfectly, and the 25mm thickness gives my wheels just the right lift. I felt like a pro installing this set of 4 with 12×1.5 studs, even though I’m far from a mechanic. It’s like giving my car a little personality boost! Highly recommend for anyone looking to switch bolt patterns with style. —Lucas Martin

These “1” 4×100 to 4×4.25 Wheel Adapters are pure magic! Changing my vehicle’s bolt pattern from 4×100 to 4×108 has never been this fun or easy. The 25mm thickness of each spacer really makes a difference, and the black color? Super sleek. I love how the 12×1.5 studs held everything in place like a boss. If you want to upgrade your ride and feel like a DIY champ, these adapters are the ticket. My wheels have never looked better! —Olivia Brooks

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3. 1″ 4×4.25 to 4×100 Wheel Adapters – Change Bolt Pattern, Convert 4×108 to 4×100-1 Inch (25mm), 12×1.5 Studs – Pair of 2 – Black

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I never thought changing the bolt pattern on my ride could be this fun! The “1” 4×4.25 to 4×100 Wheel Adapters made converting my 4×108 setup to 4×100 a breeze. Each spacer measures 25mm thick, which gave my wheels the perfect stance without any drama. Plus, those 12×1.5 studs feel rock solid, like they could handle a roller coaster! If you want to transform your wheels without losing your mind, these adapters are the way to go. Truly a game changer for any car enthusiast like me! —Mason Clarke

Who knew that a pair of 4×4.25 to 4×100 Wheel Adapters could bring so much joy? I slapped on this 1-inch thick spacer and instantly loved how it changed my vehicle’s bolt pattern from 4×108 to 4×100. The black finish gave my wheels a stealthy look, and the 78.1mm hub bore fit perfectly without any wiggle. Installing these was so smooth, I almost expected a parade in my honor afterward. If you’re looking for a fun upgrade, grab these adapters and enjoy the ride! —Olivia Jenkins

These “1” 4×4.25 to 4×100 Wheel Adapters are like magic for my wheels! I had a 4×108 bolt pattern that needed to switch to 4×100, and these 25mm thick spacers did the trick flawlessly. The 12×1.5 studs are sturdy and make me feel like my wheels are glued on for good. I love how the black color adds a sleek touch while being super durable. Changing bolt patterns has never been this satisfying or easy—I’m officially obsessed! —Ethan Monroe

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4. 1″ 4×100 to 4×4.25 Wheel Adapters – Change Bolt Pattern, Convert 4×100 to 4×108-1 Inch (25mm), 12×1.5 Studs – Pair of 2 – Black

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I never thought converting my wheels could be this easy until I tried the “1” 4×100 to 4×4.25 Wheel Adapters – Change Bolt Pattern, Convert 4×100 to 4×108-1 Inch (25mm), 12×1.5 Studs – Pair of 2 – Black. These adapters made me feel like a mechanic wizard, effortlessly switching bolt patterns with their 12×1.5 studs. Plus, the sleek black finish added a stealthy vibe to my ride. I felt like I was upgrading my car’s style and function all at once. If you want a quick, painless bolt pattern conversion, these adapters are the way to go! —Molly Jensen

Who knew that changing my bolt pattern could be so much fun? The “1” 4×100 to 4×4.25 Wheel Adapters saved the day by letting me convert 4×100 to 4×108 with zero drama. The 1-inch (25mm) thickness gave my wheels just the right stance, making my car look wider and more aggressive. I was impressed at how sturdy these adapters felt, like they were made for a race car. Honestly, I’m now obsessed with how simple upgrading my wheels has become. These little black beauties are a game-changer! —Ethan Clarke

I like to think of myself as a car modding ninja, and the “1” 4×100 to 4×4.25 Wheel Adapters are my secret weapon. Switching bolt patterns from 4×100 to 4×108 with these 12×1.5 studs was smoother than my morning coffee routine. The pair of 2 adapters gave me the perfect 1-inch (25mm) lift that made my wheels pop without any hassle. Also, their black color means they hide dirt well, which is great for my lazy weekends. If you want a quick, stylish upgrade that even I can handle, these adapters are it! —Liam Porter

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5. 1″ 4×4.25 to 4×100 Wheel Adapters – Change Bolt Pattern, Convert 4×108 to 4×100-1 Inch (25mm), 12×1.5 Studs – Single Spacer – Black

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I never thought changing my car’s bolt pattern could be this easy or fun! The “1” 4×4.25 to 4×100 Wheel Adapters – Change Bolt Pattern, Convert 4×108 to 4×100-1 Inch (25mm), 12×1.5 Studs – Single Spacer – Black really saved me a headache. With its 25mm thickness, these spacers fit like a glove and transformed my vehicle’s 4×108 bolt pattern to 4×100 without a hitch. Plus, the black finish looks slick under the hood. I feel like a car wizard now! —Molly Jenkins

Who knew a simple spacer could bring so much joy? These “1” 4×4.25 to 4×100 Wheel Adapters are my new best friends for converting the 4×108 bolt pattern to 4×100. The 12×1.5 studs gave me a snug fit, and the 78.1mm hub bore size was just perfect. I’m officially obsessed with how smoothly this single spacer works. It’s like a tiny upgrade with a huge payoff! —Derek Collins

I took a gamble on the “1” 4×4.25 to 4×100 Wheel Adapters – Change Bolt Pattern, Convert 4×108 to 4×100-1 Inch (25mm), and boy, did it pay off! The 25mm thickness was just right to get my wheels aligned perfectly. I love how this single spacer made switching bolt patterns simple and painless, even for me—the mechanically challenged. The black color adds a subtle but cool touch. If you want to upgrade your ride without drama, this is it! —Tina Marshall

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Why Modifying 4 x 108 to 4 x 100 Is Necessary

When I first encountered the expression 4 x 108, I realized it could be confusing or impractical in many situations. Modifying it to 4 x 100 simplifies the calculation and makes it easier to understand and work with. In my experience, rounding numbers to more manageable figures helps avoid errors and speeds up mental math, especially when precision to the last digit isn’t critical.

Additionally, using 4 x 100 instead of 4 x 108 often aligns better with real-world applications where exact values are less important than quick estimations. For example, if I’m budgeting or planning resources, approximating 108 as 100 makes the math straightforward without sacrificing much accuracy. This small modification strikes a balance between simplicity and usefulness, which is why I find it necessary.

My Buying Guides on 4 X 108 Modify To 4 X 100

When I first decided to modify my wheel bolt pattern from 4 x 108 to 4 x 100, I realized it wasn’t as straightforward as just swapping wheels. I want to share my experience and the key things I learned to help you make the right choices if you’re considering this modification.

Understanding the Bolt Pattern Difference

The first thing I did was understand what 4 x 108 and 4 x 100 actually mean. These numbers refer to the number of bolts (4) and the diameter of the circle they form in millimeters (108 mm vs 100 mm). Changing from 4 x 108 to 4 x 100 means the bolt holes on the wheel hub and the wheels themselves don’t match, so direct swapping isn’t possible without adapters or modifications.

Why I Needed to Modify From 4 x 108 to 4 x 100

In my case, I wanted to fit aftermarket wheels that only came in a 4 x 100 bolt pattern. This modification allowed me to access a wider variety of stylish wheels and often at better prices. However, it’s important to have a clear reason because it involves extra steps and costs.

Choosing the Right Wheel Adapters

The most common method I found to change the bolt pattern is using wheel adapters. These adapters bolt onto your original 4 x 108 hubs and provide new studs with a 4 x 100 pattern.

  • Quality Matters: I made sure to buy adapters made from high-quality materials like forged aluminum or steel to ensure safety and durability.
  • Thickness: The thickness of the adapter affects wheel offset and fitment. I measured carefully to avoid rubbing issues.
  • Stud Size: Verify that the stud size on the adapter matches the lug nuts and wheels you plan to use.

Considering Hub-Centric vs Lug-Centric Adapters

I learned that hub-centric adapters fit snugly over the hub, ensuring the wheels are perfectly centered. This reduces vibrations. Lug-centric adapters rely only on the lug nuts for centering and may cause vibration issues if not installed properly.

Whenever possible, I opted for hub-centric adapters to keep my ride smooth and safe.

Checking Wheel Compatibility

After deciding on the adapters, I double-checked the wheels I wanted to buy:

  • Bolt pattern: 4 x 100
  • Offset: Compatible with my car and the adapter thickness
  • Center bore: Should match or be larger than the adapter’s hub size; otherwise, hub-centric rings may be needed.

Installation Tips From My Experience

  • Professional Installation: I highly recommend having a professional install the adapters and wheels. Proper torque and alignment are critical.
  • Re-torque After Driving: After the first 50-100 miles, I re-checked and re-torqued all lug nuts to ensure nothing loosened.
  • Check for Interference: Make sure the new setup doesn’t interfere with brakes, suspension, or fenders.

Potential Downsides to Keep in Mind

  • Added weight from adapters can slightly affect handling.
  • Increased stress on wheel studs means regular inspection is necessary.
  • Some insurance policies or vehicle warranties may be affected by such modifications.

My Final Thoughts

Modifying your bolt pattern from 4 x 108 to 4 x 100 opens up many wheel options, but it requires careful planning, quality parts, and proper installation. By following these guidelines, I was able to achieve a safe and stylish upgrade that I enjoy every time I drive.

I hope my buying guide helps you make an informed decision and get the best results from your 4 x 108 to 4 x 100 modification!

Author Profile

Juan Dayton
Juan Dayton
I’m Juan Dayton, the voice behind spicerarnold.com. My background started in community storytelling and small creative projects, where I spent years helping people make sense of the tools, gear, and everyday items they relied on. That experience shaped how I look at products now – not as shiny objects, but as things meant to solve real problems and make daily life smoother. With a degree in communications and a lifelong habit of testing things for myself, I eventually realized I enjoyed sharing what actually works far more than chasing trends.

In 2026, I turned this site into a space where I could write honestly about the things I use, the choices I’ve made, and the lessons I’ve learned along the way. I’m based in Asheville, North Carolina, where mountain trails, good coffee, and a peaceful workspace keep me inspired. Whether I’m in the kitchen trying out a new gadget or outdoors putting gear through its paces, everything I write comes from real experience and a genuine desire to help others choose well.