Chrysler 300C SRT-8 Wheel Bolt Pattern, Rim Size, Hub Bore And Offsets

Introduction

The Chrysler 300C SRT-8 isn’t just a luxury sedan with muscle—it’s a statement. Built to combine raw power with executive-class comfort, this high-performance version of the 300 series has become a cult favorite among enthusiasts. Whether you’re chasing quarter-mile times or just want your ride to turn heads at every light, the right wheel setup can make or break your build.

Wheels play a much bigger role than just style—they affect handling, acceleration, ride comfort, and braking. That’s especially true for a performance sedan like the 300C SRT-8. With different specs across generations, knowing your exact wheel fitment is key to maintaining both the aggressive stance and the performance edge this car was built for.

This guide breaks down wheel fitment specs for both generations of the 300C SRT-8—from bolt patterns to offset and tire sizing. We’ll also explore upgrade options, fitment advice, and popular aftermarket choices. Whether you’re fitting fresh rubber or swapping to lightweight forged wheels, this is your go-to resource to get it done right. Let’s get into it, generation by generation.

First Generation Chrysler 300C SRT-8 (2005–2010)

The first-gen Chrysler 300C SRT-8 rolled onto the scene in 2005 with a bold design and serious performance thanks to the 6.1L HEMI V8. Right out of the gate, it made an impression with its wide-body stance, aggressive front end, and rear-wheel-drive platform—making it a solid canvas for wheel and tire upgrades.

Wheel Specifications

The stock wheels on this model were 20x9 inches with a 5x115 bolt pattern. The factory offset came in at +24mm, providing a good balance between inner clearance and outer stance. The hub bore is 71.5mm, which is standard across many Dodge/Chrysler RWD performance vehicles of this era. Factory tire size was 245/45R20 up front and rear, though many owners upgrade the rear to a 255 or even 275 for a wider footprint.

If you’re sticking close to OEM specs, you’ll want to stay within an offset range of +20mm to +30mm to avoid clearance issues. Anything beyond that will either push the wheels too far out or cause rubbing on the suspension components. Aftermarket wheels like Forgestar, American Racing, and Vossen are popular choices here, especially for those looking to balance performance with aesthetics.

Common Upgrades and Modifications

One of the most common mods for first-gen SRT-8s is stepping up to a staggered wheel setup, with 20x9 up front and 20x10.5 or 11 in the rear. This not only enhances the aggressive rear stance but also helps with traction, especially if you’re putting down more horsepower through tuning or bolt-ons.

For those after improved grip and handling, switching to performance summer tires in sizes like 255/40R20 (front) and 295/35R20 (rear) can make a noticeable difference. Keep in mind, wider wheels will often require adjustments like rolling the fenders or adding spacers depending on the offset.

Coilovers or lowering springs are also popular, and they pair well with aftermarket wheels. Just make sure you check wheel clearance again after lowering—suspension geometry changes can affect fitment even if the wheels were fine before.

Second Generation Chrysler 300C SRT-8 (2012–2014)

The second generation of the Chrysler 300C SRT-8 launched in 2012 with an updated look and even more muscle under the hood thanks to the 6.4L HEMI V8. While the bones of the car were similar to the first gen, there were key changes in styling and tech—and some subtle shifts in wheel fitment specs too.

Wheel Specifications

This generation also came factory-equipped with 20-inch wheels, but with a slightly more refined design. The bolt pattern remained 5x115, but the factory wheel size was 20x9 inches front and rear with a more tucked-in offset of around +25mm to +28mm. The hub bore stayed the same at 71.5mm.

Tires from the factory were 245/45ZR20 all around, giving the car a balanced grip setup for both city driving and highway runs. Many owners, though, prefer to go staggered with 255/45ZR20 up front and 275/40ZR20 or even 295/35ZR20 in the back for better traction and aesthetics.

Thanks to slightly improved suspension clearance, the second-gen SRT-8 is often more forgiving when it comes to aftermarket fitment. This means you can experiment with more aggressive wheel specs, such as wider offsets or deeper concave wheels, without as much rubbing risk.

Common Upgrades and Modifications

Second-gen SRT-8 owners often opt for custom 20x10.5 or 22x10.5 wheels in the rear for that bold, planted look. Brands like Rohana, Ferrada, and TSW are common picks due to their deep concave designs and wide range of finishes.

A lot of owners also take advantage of the improved suspension by lowering the car using air suspension or coilovers. This helps eliminate fender gap and allows a more aggressive wheel fitment. Just be mindful of the offset—you’ll want to stay between +15mm to +30mm depending on wheel width to ensure proper clearance.

Another popular route is upgrading to lightweight forged wheels to reduce rotational mass. This can noticeably improve acceleration and braking, especially on performance-tuned builds.

Wheel Fitment Considerations

When choosing wheels for the 300C SRT-8—regardless of generation—you need to think beyond just diameter and width. Bolt pattern, hub bore, offset, and tire size all play major roles in how your wheels will perform and how your car will look and handle.

The bolt pattern across both generations is 5x115, but many aftermarket wheels use the more common 5x114.3 pattern. While they may bolt on with wobble bolts or hub-centric rings, this isn't recommended for high-performance use. Always prioritize safety and fitment accuracy.

The hub bore of 71.5mm means you'll want to avoid wheels that are too small, as they won’t sit flush without modification. Most aftermarket options come with a larger bore and require hub-centric rings to ensure a vibration-free ride.

Offsets are where most people mess up. Go too low and your wheels will poke out, potentially rubbing fenders. Go too high and they may hit the suspension. Stay within +15mm to +30mm for most setups depending on wheel width. Lowered cars will need even more precise fitment.

Lastly, tires should match your wheel width and intended use. Going too wide without proper clearance leads to rubbing, while too narrow can stretch the tire and compromise safety.

Troubleshooting Common Issues

Even if your wheels technically "fit," there are a few common issues that SRT-8 owners run into—especially when venturing into custom setups. Rubbing, vibration, and improper lug fitment are at the top of the list.

Rubbing usually happens when you've gone too aggressive with wheel width or offset, especially on lowered cars. Rolling fenders or switching to a slightly higher offset can help solve this. In extreme cases, you may need to adjust camber settings.

Vibrations are often caused by improper hub bore matching or the use of lug-centric wheels. Always use hub-centric rings if your wheels aren’t a direct match to the 71.5mm hub bore. This ensures even pressure distribution and a smooth ride.

Another issue is incorrect lug nuts. The SRT-8 requires a specific seat style (typically conical), so using the wrong ones can cause wheel damage or even failure. Always match your lug nuts to the wheels you're installing and torque them properly.

Conclusion

The Chrysler 300C SRT-8 is a bold, powerful platform that deserves an equally impressive wheel setup. Whether you're running the first-gen 6.1L beast or the second-gen 6.4L monster, the right wheels can elevate your driving experience and give your car the aggressive stance it was meant to have.

From the factory bolt pattern of 5x115 to the hub bore of 71.5mm and ideal offsets in the +20mm to +30mm range, getting your specs right is essential. Both generations respond well to staggered setups, wider tires, and custom wheels, as long as you stay mindful of clearance and ride quality.

At the end of the day, wheels are one of the most visible and functional upgrades you can make. Take the time to choose wisely, and your SRT-8 will reward you every time you hit the road—or the track.