Rc Cars Reviews

Arrma Big Rock 6s COMPARED to the Fireteam 6s.

Arrma Big Rock 6s COMPARED to the Fireteam 6s.

Size and Bumpers

The Arrma Big Rock 6s is slightly longer than the Fireteam 6s due to its bumpers and other design elements. This difference in size may affect the overall height and ground clearance of the vehicle.

Handling and Gearing

When it comes to handling, the Arrma Big Rock 6s and Fireteam 6s have slight variations in their gearing systems. The Arrma Big Rock 6s comes with a 122-tooth gear and a 15-tooth speed gear, while the Fireteam 6s has a 13-tooth gear and a 16-tooth speed gear. These differences in gearing affect the speed and acceleration capabilities of the vehicles.

Speed and Stock Tires

The stock tires on the Arrma Big Rock 6s are a larger diameter than those on the Fireteam 6s. This is the reason why the Big Rock 6s is equipped with a 12-tooth gear instead of a 13-tooth gear. The stock setup of the Arrma Big Rock 6s ensures optimal performance with the larger tires.

Speed Comparison

When it comes to speed, the Arrma Big Rock 6s and the Fireteam 6s offer impressive performances right out of the box. With the stock setup on 4S, the Arrma Big Rock reaches speeds of approximately 34 mph. On the other hand, the Fireteam 6s manages to hit around 54 mph with the stock configuration on 6S.

However, the speed capabilities of both vehicles can be further enhanced with a few modifications. Upgrading the optional speaker on the Arrma Big Rock to a 15, for instance, boosts its speed to roughly 42 or 43 mph on 6S. Meanwhile, the Fireteam 6s, when switched to 6S, can reach an impressive speed of about 63 mph. Videos showcasing these enhanced speeds are readily available for enthusiasts to explore and admire.

Stock vs. Modified

Considering the stock speed, the Arrma Big Rock falls slightly behind the Fireteam 6s, with a maximum speed of 38 mph. Unfortunately, the exact speed for the Fireteam 6s is not recalled, but the packaging provides this information for interested customers.

It is important to note, however, that the differences in speed are not solely attributable to the gear ratios. The Arrma Big Rock compensates for its slightly lower gear ratio with larger diameter tires, effectively increasing its overall speed. While some may argue against this viewpoint, the performance of these vehicles lends credibility to this assessment.

Performance and Heat Management

Replacing the stock gears with a smaller 13 pinion gear may increase the speed of the vehicles even further. However, it is necessary to exercise caution when making such modifications, as they may cause the vehicles to overheat. The balance between speed and heat management must be carefully considered.

Both the Arrma Big Rock 6s and the Fireteam 6s are designed to deliver outstanding performances. Their speed capabilities can be enhanced through modifications, giving enthusiasts the opportunity to push the vehicles to their limits. However, it is crucial to strike a balance between speed and the ability to dissipate heat effectively in order to prevent potential overheating issues.

Performance and Electronics

Arrma Big Rock 6s and Fireteam 6s are both powerful vehicles that offer impressive performance. However, there are some notable differences in terms of their electronics.

The Fireteam 6s had some issues with overheating when some users tried to install the 181 19s. This could potentially hinder its performance and cause frustration for users. On the other hand, the Arrma Big Rock 6s comes with updated version 2 electronics, which seemed to offer improved performance compared to the version one electronics. The updated version provided more punch and power, without the need to make any adjustments. Furthermore, the Big Rock 6s also comes with a better servo, which enhances its overall functionality.

Handbrake and Price Differences

One notable feature of the Arrma Big Rock 6s is the inclusion of a handbrake. Although this feature may not be extensively used by all users, it adds an extra element of control and versatility to the vehicle. The Fireteam 6s, on the other hand, lacks this feature.

Another aspect to consider is the price difference between the two vehicles. At the time of the video, there is a $50 price difference between the two. Some may question whether the price difference is justified, especially considering that similar complaints about high prices are often raised when Arrma releases new products. However, it’s important to recognize that a significant part of the price goes towards the innovation and effort put into creating these vehicles.

Innovation and Design

When it comes to innovation and design, the Arrma Big Rock 6s truly stands out. The body of the vehicle alone is a testament to the amount of work that went into its creation. Many people may not realize the level of effort, precision, and detail that is put into designing such a body. It is a visual masterpiece that adds to the overall appeal of the vehicle.

While other companies may release products without much criticism about their prices, it seems that Arrma often faces complaints when their prices are relatively high. It is understandable that some may find the prices to be steep, especially if they are personally investing in these products. However, it’s crucial to appreciate the time, expertise, and innovation that go into creating such unique and high-performance vehicles.

In , the Arrma Big Rock 6s and Fireteam 6s are both powerful and impressive vehicles. The differences in electronics, handbrake availability, and price may be important factors to consider when making a purchase decision. Ultimately, it is crucial to recognize the artistry and dedication behind the innovation and design of these vehicles, including the remarkable body of the Arrma Big Rock 6s.

Body Design and Height Comparison

The Arrma Big Rock 6s and the Fireteam 6s are both seven-scale vehicles capable of reaching speeds of 50-60 mph. Upon closer inspection, it becomes apparent that a significant amount of work has been put into designing the bodies of these vehicles.

One noticeable difference between the two vehicles is their height. The Fireteam sits a little bit higher than the Big Rock due to its stock tires. Although the exact comparison cannot be made without the stock tires of the Big Rock, it is safe to assume that the Fireteam will be slightly taller than what is visible here.

Wheelbase Length

When it comes to the wheelbase length, the two vehicles are quite similar. The Big Rock and the Fireteam have almost the same lengthwise and wheelbase measurements. The only difference that can be observed is that the tires on the Fireteam make it appear slightly shorter. However, in reality, they are just about the same size.

Overall Size

The size comparison between the two vehicles is somewhat similar. The Big Rock may be a little bit longer, especially with its stock tires. The stock tires on the Big Rock will give it a lengthier appearance compared to the Fireteam.

Now that we have discussed the height, wheelbase, and overall size of the two vehicles, let’s move on to examining their bodies in more detail. I will be removing the bodies to provide you with a better understanding.

Removal of Bodies

Many people are curious to see the bodies of both vehicles without any obstructions. By taking off the bodies, we’ll be able to get a closer look at the intricate details and features of these RC cars.

The Similarities and Differences in Design

When comparing the Arrma Big Rock 6s to the Fireteam 6s, there are certain aspects that stand out. Many enthusiasts in the comments section have pointed out that the two vehicles have a similar size. However, upon closer inspection, it becomes evident that there are some notable differences in their design.

The Side Steps

One significant difference lies in the placement of the side steps. While the Fireteam has them included on the body itself, the Big Rock features side steps that are built into the actual body. This variation in the placement can be easily observed and highlights the distinction between the two vehicles.

Chassis and Shock Towers

The chassis and shock towers also exhibit slight discrepancies between the Arrma Big Rock 6s and the Fireteam 6s. Initially, it seemed that these components might be identical, but upon closer examination, they reveal subtle divergences. Although these disparities might seem inconsequential, they contribute to the overall dissimilarity in design.

Converting Fireteam to Big Rock

Some enthusiasts have expressed their desire to convert their Fireteam into a Big Rock. However, it’s essential to note that doing so will require additional investments. Simply acquiring the body alone will not suffice. To achieve the desired clipless front end, one must also invest in the corresponding components for both the front and rear of the vehicle. This includes getting the necessary bumpers and side pieces as well. Overall, the conversion process entails more than just replacing the body and should be considered with its accompanying cost implications.

Handbrake Differences

Another aspect that sets the Arrma Big Rock 6s apart from the Fireteam 6s is the presence of a handbrake. The Big Rock boasts a handbrake feature, which is absent in the Fireteam. This additional functionality adds a unique element to the Big Rock and may be a determining factor for some enthusiasts.


In , the Arrma Big Rock 6s and the Fireteam 6s may share certain similarities in size, chassis, and shock tower length. Nonetheless, upon closer examination, distinctions in design become apparent. For those contemplating converting their Fireteam into a Big Rock, it’s crucial to consider the additional costs involved and the need for acquiring the compatible components. Ultimately, the decision between the two vehicles may come down to personal preferences, with factors such as the presence of a handbrake playing a significant role in the choice.

The Handbrake Comparison

One noticeable difference between the Arrma Big Rock 6s and the Fireteam 6s is the presence of a handbrake on the Fireteam. While the Fireteam boasts this feature, the Big Rock does not. This distinction may be crucial for drivers who rely on handbrakes for specific maneuvers or prefer the added control it provides.

Battery Tray Placement

Another contrasting feature of these two models is the placement of the battery tray and receiver. On the Fireteam, these components are situated closer to the front, whereas on the Big Rock, they are positioned towards the rear. This disparity can significantly impact the weight distribution of the vehicles and may influence their overall performance.

Servo Mount Similarities

Despite several discrepancies, the servo mounts remain relatively consistent between the two models. It is worth noting that upgrades were made to the servo and servo horn on the Fireteam, which may not be necessary for the Big Rock. The servo on the Big Rock is already of good quality, functioning at 25t, which saves users from the need for any further upgrades.

Improved Speed Controller

One notable enhancement featured in the upgraded version of the Big Rock is the 2 Firma speed controller. This new addition has noticeably improved performance, as reported by those who have driven it. Both models come equipped with the Spectrum 2050 KV motor, which has proven to be problem-free. Additionally, both vehicles come with fans to prevent overheating, ensuring the longevity of these essential components.

Potential Chassis Brace Compatibility

While it remains unverified, there is a possibility that the chassis braces designed for the exb mve may also fit the Big Rock and Fireteam vehicles. This could be beneficial for those who may want to further reinforce their chassis and improve overall stability.

In , the Arrma Big Rock 6s and Fireteam 6s each have their unique features and differences. The inclusion of a handbrake on the Fireteam may be a significant advantage for certain drivers, while the battery tray placement and servo mount similarities may be influential factors in the overall handling and balance of the vehicles. On the performance front, the improved speed controller in the Big Rock has shown positive results, complementing the reliable motor and cooling features found in both models. Additionally, there is a potential opportunity for cross-compatibility with exb mve chassis braces, offering further customization possibilities for enthusiasts.

Body and Design Comparison

When comparing the Arrma Big Rock 6s to the Fireteam 6s, one of the first noticeable differences is the body design. While some may argue that the Fireteam simply has a truck body slapped onto it, it is clear that Arrma has put effort into ensuring that the Big Rock performs differently. The tires on the Big Rock are noticeably wider, which greatly impacts its performance, especially when driving on the street. These wider tires also seem to have better tread wear, as they have not worn down significantly despite extensive street usage.

Under the Hood Comparison

Flipping these vehicles over, we can examine what sets them apart. Looking closely, we can see that the plastic piece on the Arrma Big Rock 6s is somewhat similar to the one on the Fireteam 6s. However, upon closer inspection, it becomes clear that there are some slight differences between the two. It is uncertain what exact modifications Arrma has made to the Big Rock, but it is evident that these changes have a significant impact on its performance.

Performance Differences

While further investigation is needed to fully understand the performance differences between the Arrma Big Rock 6s and the Fireteam 6s, it is safe to say that they are not identical. The modifications made to the Big Rock, combined with the wider tires, result in a distinct driving experience, particularly when navigating through street environments. The performance disparities may extend beyond the body and design elements, and additional test drives and comparisons are required to uncover the full extent of these differences.

Chassis comparison

The first thing to note when comparing the Arrma Big Rock 6s and the Fireteam 6s is that they share the same ARS (Adjustable Ride Height) system. This commonality is beneficial since it means that no new ARS components were needed to be developed specifically for the Big Rock. In terms of the chassis, both vehicles feature plastic side pieces that provide stability and support. Although it is hard to make a direct comparison between the holes on each chassis due to the presence of tape, it is believed that the chassis design is the same for both models. A closer inspection of the part numbers would be necessary for a definitive confirmation.

Underneath the vehicles

Looking underneath the vehicles, it can be observed that the Big Rock sits slightly wider than its counterpart. This difference in width is due to the plastic piece and side rails featured on the Fireteam. These components not only contribute to the wider appearance but also enhance the overall stability of the vehicle. It is worth noting that this comparison is limited in scope and does not cover all aspects of the two vehicles.

Handling differences

One area where the Big Rock noticeably differs from the Fireteam is in its handling. While this comparison does not delve deeply into the specifics, it can be inferred that the Big Rock offers a distinct handling experience. To provide a more comprehensive evaluation, both vehicles will be taken out and tested in the same video. It is important to mention that the Big Rock is equipped with a faster servo, which could impact its overall performance. With this in mind, running both vehicles side by side will allow for a more accurate assessment.

In , the Arrma Big Rock 6s and the Fireteam 6s share similarities in terms of the ARS system and chassis design. However, the presence of additional components on the Fireteam, such as the side rails, contributes to a wider appearance. Furthermore, the Big Rock is expected to offer a different handling experience, possibly due to the faster servo it houses. To gain a comprehensive understanding of these two vehicles, further testing and evaluation is required.

Arrma Big Rock 6s

The Arrma Big Rock 6s is a beast of an RC car, designed for those who seek power and performance. With its sleek and aggressive body, it stands out among other RC cars in the market. This car is built to handle tough terrains and conquer any obstacles that come in its way. The Big Rock 6s is equipped with a powerful motor and durable suspension, allowing it to reach high speeds and maneuver through rough surfaces with ease.

Fireteam 6s

The Fireteam 6s is another impressive RC car that has gained popularity among hobbyists. It features a sturdy and compact design, making it suitable for both on-road and off-road adventures. The Fireteam 6s comes with a reliable motor and adjustable suspension, giving it a smooth and precise control. This car is known for its speed and agility, making it a favorite choice for racers and enthusiasts alike.

Body Compatibility

One key aspect to consider when comparing these two RC cars is their body compatibility. The Arrma Big Rock 6s has a unique and distinct body design, which may not be compatible with the Fireteam 6s. In order to fit the Big Rock body onto the Fireteam, significant modifications and additional expenses may be required. This includes changing certain parts and spending a considerable amount of money. While it is possible for someone to make it fit, it is not a straightforward process and may deter some users from attempting it.


When it comes to performance, both the Arrma Big Rock 6s and the Fireteam 6s have their own strengths and weaknesses. The Big Rock 6s, with its powerful motor and durable suspension, has the ability to tackle rough terrains and reach impressive speeds. On the other hand, the Fireteam 6s is known for its speed and agility, making it ideal for racing and tight maneuvers. Depending on the user’s preferences and intended use, one car may outshine the other in terms of performance.

In , the Arrma Big Rock 6s and Fireteam 6s are two distinct vehicles with their own strengths and characteristics. The Arrma Big Rock 6s offers a rugged and doom buggy-like appearance, while the Fireteam 6s provides a different style and aesthetic. The differences in handling, gearing, and tire size contribute to the unique performance capabilities of each vehicle. Whether you prefer the Big Rock 6s or the Fireteam 6s depends on your personal preference and the specific tasks you want your RC vehicle to perform.

Despite lacking a conclusive comparison, it is clear that the Arrma Big Rock 6s differs from the Fireteam 6s in various aspects. From the body and design variations to the distinct driving experience, it is evident that Arrma has put effort into creating a unique model in the Big Rock. Further exploration and testing will be necessary to fully comprehend the performance disparities between these two vehicles.

In , the Arrma Big Rock 6s and the Fireteam 6s are both remarkable RC cars with their own unique features and capabilities. While the Big Rock 6s may not be easily compatible with the Fireteam 6s body, both cars offer outstanding performance in their respective domains. Whether you prefer rugged terrains or fast-paced racing, there is a car that suits your needs. Explore the options and choose the RC car that aligns with your style and preferences.

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