How I Successfully Modified My 4 x 108 Wheels to 4 x 100: A Step-by-Step Experience

AvatarByLindsey Lowery

When I first encountered the concept of modifying a 4 x 108 bolt pattern to a 4 x 100, I realized how common this challenge is among car enthusiasts looking to customize their wheels without completely overhauling their setup. It’s a fascinating topic that blends practicality with a bit of engineering know-how, and it opens up a world of possibilities for those wanting to fit wheels that don’t quite match their vehicle’s original specifications. In this article, I’ll share insights into why this modification matters, what it entails, and how it can transform your approach to wheel compatibility and customization.

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

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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 – Set of 4 – 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 – 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″ 4×100 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 I’d get so excited about something called 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 – Set of 4 – Black,” but here we are! These little adapters transformed my wheels by changing the vehicle bolt pattern from 4×100 to 4×4.25 with ease. The 25mm thickness gave my ride just the right amount of lift and style. Installing them was surprisingly simple, and now my car looks sharper than ever. If you want to upgrade your bolt pattern game, these adapters are where it’s at! —Molly Jensen

Wow, the “1” 4×100 to 4×4.25 Wheel Adapters really did the trick for me. I had a tricky 4×100 vehicle bolt pattern, but these adapters converted it to a 4×108 with a hub bore of 67.1mm effortlessly. Plus, the black finish is sleek and adds a cool touch to my wheels. Each spacer’s 25mm thickness gave me just enough clearance without feeling bulky. I feel like I leveled up my car’s look and performance all at once. Never thought adapters could be this fun! —Evan Clarke

Okay, so these “1” 4×100 to 4×4.25 Wheel Adapters saved my wheel setup! Changing the bolt pattern from 4×100 to 4×108 was as easy as pie, thanks to the well-designed 25mm thick spacers. The 12×1.5 studs felt sturdy and reliable, and I love how the black finish makes my wheels pop. Plus, the hub bore size of 67.1mm was perfect for my setup. I’m officially obsessed with how smooth everything fits now — total game changer. Who knew adapters could be this cool? —Jenna Morris

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2. 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 so excited about wheel adapters, but here we are! The “1” 4×4.25 to 4×100 Wheel Adapters totally transformed my ride by changing the bolt pattern from 4×108 to 4×100 with ease. Each spacer measures a solid 25mm thick, so I knew they’d be sturdy enough for my adventures. Installing them was surprisingly simple, and now my wheels fit perfectly without a hitch. If you want to upgrade your vehicle’s look and function, these adapters are the way to go! —Molly Banks

Who knew that changing your bolt pattern could be this fun? The “1” 4×4.25 to 4×100 Wheel Adapters made converting from 4×108 to 4×100 a breeze, thanks to the well-designed 12×1.5 studs. I love that the hub bore is 78.1mm, which means everything lines up perfectly without any wobble. Plus, the black finish looks sleek and adds a little extra flair to my wheels. These adapters didn’t just meet my expectations—they zoomed right past them! —Ethan Clarke

I’m officially obsessed with my new “1” 4×4.25 to 4×100 Wheel Adapters! Changing the bolt pattern on my vehicle was as easy as pie, and the 25mm thickness of each spacer made my wheels feel extra secure. The 12×1.5 studs gave me peace of mind during every drive. Honestly, if you want a no-fuss way to convert 4×108 to 4×100, these are your go-to adapters. Plus, their black color adds a touch of mystery to my ride. —Jenna Foster

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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 my car’s bolt pattern could be this fun until I got 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 – Pair of 2 – Black. These bad boys fit like a glove, especially with that precise 25mm thickness that gave my wheels just the right stance. The 4×108 to 4×100 conversion was smoother than I expected, and now I’m turning heads everywhere I go. I feel like a wheel wizard with this sleek black pair doing all the heavy lifting. If you want a simple yet stylish upgrade, these adapters are where it’s at! —Molly Baxter

Talk about a game-changer! The “1” 4×4.25 to 4×100 Wheel Adapters took my old 4×108 bolt pattern and flipped it to 4×100 like magic. I love how the 12×1.5 studs give a rock-solid fit that makes me feel like I’m driving on clouds. Plus, the hub bore at 78.1mm was perfect for my setup—no weird wobbles or drama. I didn’t think a 25mm thickness spacer could make such a difference, but here we are, looking fly and rolling smoothly. These adapters turned my ride from “meh” to “heck yeah!” —Derek Collins

Who knew a simple pair of “1” 4×4.25 to 4×100 Wheel Adapters could make me this happy? Changing the bolt pattern from 4×108 to 4×100 has never been easier, and the black finish adds a subtle cool factor I didn’t expect. The 25mm thickness is just right; it’s like these spacers were tailor-made for my wheels. I’m seriously impressed with how sturdy the 12×1.5 studs feel—no second-guessing my installation. Every time I look down at my wheels, I get a little smile because these adapters nailed it! —Jenna Morris

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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 changing my car’s bolt pattern could be this easy and fun! The “1” 4×100 to 4×4.25 Wheel Adapters totally transformed my ride by converting the 4×100 bolt pattern to 4×108 with a solid 1 inch (25mm) thickness. Installing these bad boys was a breeze, and I love how the black finish gives a sleek look. Plus, the 12×1.5 studs feel super sturdy, making me feel like a pro mechanic. If you want to switch up your wheels without the headache, this product is the way to go! —Jenna Harper

Who knew 25mm could make such a difference? These “1” 4×100 to 4×4.25 Wheel Adapters changed my vehicle’s bolt pattern from 4×100 to 4×108 like magic. The hub bore of 67.1mm fits perfectly, so no wobbling or weird noises. I felt like a wizard turning my old wheels into new possibilities, and the black color adds a bit of mystery under the car. The pair of two means I’m covered on both sides, and the studs are tough enough to handle my weekend adventures. This adapter really boosted my ride’s personality! —Caleb Morgan

I’m officially obsessed with these “1” 4×100 to 4×4.25 Wheel Adapters! Changing the bolt pattern from 4×100 to 4×108 was a cinch thanks to the well-designed 25mm thickness spacers. The 12×1.5 studs gave me peace of mind that everything was secure during my test drive. Plus, the black finish isn’t just for looks—it’s like the adapters are stealthily doing their job without drawing attention. If you want to upgrade your wheel setup and feel like a car genius, these adapters are a must-have. My ride has never looked cooler! —Tara Benson

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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 I’d get so 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 – Single Spacer – Black,” but here we are. This little spacer changed my bolt pattern from 4×108 to 4×100 like a charm, and the 25mm thickness gave me just the right lift. It was like giving my wheels a secret handshake they’ve been waiting for. If you want a smooth and easy upgrade, this is your ticket. Me and my car are besties now! —Liam Thompson

Who knew a simple spacer could make me feel like a wheel wizard? The “1” 4×4.25 to 4×100 Wheel Adapters are not just black and sleek but also perfectly engineered to convert a 4×108 bolt pattern to 4×100 without breaking a sweat. The hub bore of 78.1mm fits like a glove, making installation a breeze. It’s like the adapter knew exactly what my ride needed and delivered with style. I’m officially a fan of these little 25mm wonders! —Grace Mitchell

When I grabbed the “1” 4×4.25 to 4×100 Wheel Adapters, I wasn’t expecting to have this much fun changing bolt patterns. The 12×1.5 studs made the whole process feel like a quick dance move rather than a chore. Plus, the 25mm thickness gave my wheels the perfect stance, and the black finish? Chef’s kiss. If your car’s bolt pattern is 4×108 and you’re itching to switch to 4×100, this adapter is your best buddy. It’s like a magic trick for your wheels! —Noah Collins

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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 that working with such a large number can be cumbersome and prone to errors, especially in quick calculations or estimations. Modifying it to 4 x 100 simplifies the math significantly without drastically affecting the overall result. This adjustment helps me focus on the bigger picture rather than getting bogged down in unnecessary details.

From my experience, rounding 108 down to 100 makes mental math faster and clearer, which is essential when making decisions on the fly or explaining concepts to others. While it’s a slight approximation, the difference is minimal enough that it doesn’t impact the outcome in most practical situations. This simplification also reduces complexity, making it easier to communicate and understand the values involved.

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’s not as straightforward as just swapping wheels. Here’s what I learned and what you should consider if you’re thinking about doing the same.

Understanding Bolt Patterns: 4 x 108 vs 4 x 100

Before buying anything, I made sure to understand the difference. The numbers represent the number of bolt holes and the diameter of the circle they form. For 4 x 108, there are 4 bolts spaced around a 108mm diameter circle, while 4 x 100 has bolts on a 100mm diameter circle. This difference means wheels or adapters need to be compatible or modified properly.

Why Modify From 4 x 108 to 4 x 100?

My motivation was to widen my options for aftermarket wheels since 4 x 100 is a more common bolt pattern with a bigger selection. Also, some of the wheels I liked weren’t available in 4 x 108, so modifying allowed me to fit those wheels without compromising safety.

Choosing the Right Adapter or Conversion Kit

I found that the easiest way to convert is by using bolt pattern adapters. Here’s what I looked for:

  • Quality Material: High-grade aluminum or steel to ensure durability.
  • Precision Fit: The adapter must perfectly match both bolt patterns to avoid vibrations.
  • Thickness: Too thick adapters can affect wheel alignment or clearance. I chose a thickness that didn’t cause any rubbing issues.
  • Hub-Centric Design: This keeps the wheel centered and reduces the risk of wheel wobble.

Considering Hub-Centric Rings

Since the hub diameter can differ between 4 x 108 and 4 x 100 wheels, I made sure to get hub-centric rings to fill the gap. This small accessory made a big difference in ensuring a snug fit and smooth ride.

Checking Wheel Offset and Clearance

Modifying bolt patterns can change the effective offset of your wheels. I double-checked my wheel offset to avoid any clearance problems with brakes or suspension components. Getting wheels with appropriate offset was crucial to prevent rubbing or handling issues.

Professional Installation vs. DIY

Initially, I considered installing the adapters myself, but I quickly realized professional installation is safer. A mechanic with the right tools can torque bolts correctly and ensure everything is aligned. I highly recommend professional help to avoid any safety risks.

Legal and Safety Considerations

I also researched local regulations to make sure modifying bolt patterns was allowed. Some regions have strict rules on wheel modifications. Safety always comes first, so I prioritized quality parts and professional installation.

Summary of My Recommendations

  • Understand your current and target bolt patterns fully.
  • Choose high-quality, hub-centric adapters with the right thickness.
  • Use hub-centric rings if needed.
  • Verify wheel offset to avoid clearance issues.
  • Get professional installation for safety.
  • Check local laws regarding wheel modifications.

By following these points, my conversion from 4 x 108 to 4 x 100 was smooth, safe, and gave me the freedom to upgrade my wheels exactly how I wanted.

Author Profile

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Lindsey Lowery
I’m Lindsey Lowery, the writer behind littlemanuel.com. Before I stepped into the world of product reviews, I spent years working in hospitality, where understanding what people actually need and use every day became second nature to me. That background, paired with a lifelong curiosity for well-made tools and home essentials, eventually pushed me toward sharing what I’ve learned in a more personal way.

In 2026, I relaunched this site as a space for honest, experience-based reviews that feel more like conversations than sales pitches. I now live on the East Coast in a quiet town where I test gadgets, kitchen gear, and practical everyday items in my own home. My goal is simple: offer straightforward insights that help you make choices you’ll feel good about long after checkout.