The Arrma Grom, a popular choice for entry-level bashers, boasts impressive speed and agility right out of the box. However, as with many RC cars, one area that often benefits from an upgrade is the servo mount. A stronger, more robust servo mount can significantly improve steering precision and responsiveness, especially when pushing the Grom to its limits. This guide will explore various Arrma Grom servo mount options, installation tips, and the benefits of upgrading.
Why Upgrade Your Arrma Grom Servo Mount?
The stock Arrma Grom servo mount, while functional, can be a weak point, particularly under stress from aggressive driving. Here's why an upgrade is often beneficial:
- Increased Durability: The stock plastic mount can crack or break under heavy impacts, leading to steering issues or even complete failure. An upgraded metal mount offers significantly greater strength and resilience.
- Improved Steering Precision: A more rigid mount minimizes flex and play in the steering system, resulting in more precise and responsive steering. This is crucial for navigating technical terrain and performing maneuvers with accuracy.
- Enhanced Steering Responsiveness: Reduced flex translates to quicker and more direct steering response, allowing for faster reactions and better control.
- Protection for Your Servo: A sturdy mount provides better protection for your expensive servo from damage caused by crashes and impacts.
Arrma Grom Servo Mount Options
Several options exist for upgrading your Arrma Grom's servo mount. These typically fall into two categories:
1. Aftermarket Metal Servo Mounts
Numerous aftermarket manufacturers produce durable aluminum servo mounts specifically designed for the Arrma Grom. These mounts are generally more robust than the stock plastic part and offer improved durability and precision. Look for mounts that are precisely machined for a perfect fit and offer features like reinforced mounting points. Pay attention to reviews to ensure compatibility and quality.
2. Modifying the Stock Mount (Advanced Users Only)
For those comfortable with modifying parts, it's possible to reinforce the stock plastic servo mount. This could involve adding epoxy resin or reinforcing it with carbon fiber. However, this requires skill and the right materials and isn't recommended for beginners, as a poorly executed modification could weaken the mount further.
Installing Your New Arrma Grom Servo Mount
The installation process varies depending on the specific aftermarket mount you choose. Generally, it involves the following steps:
- Remove the Stock Mount: Carefully remove the existing plastic servo mount from your Arrma Grom. Note the orientation of the screws and any washers or spacers used.
- Prepare the New Mount: Inspect your new servo mount for any burrs or imperfections. If necessary, lightly deburr any sharp edges.
- Install the New Mount: Align the new servo mount and carefully install the screws, ensuring they are tightened evenly. Refer to the instructions provided with your specific servo mount for detailed guidance.
- Reinstall the Servo: Mount your servo onto the new servo mount, ensuring a secure and snug fit.
- Test and Adjust: Test the steering to ensure proper functionality. Adjust the servo linkage if needed to ensure proper centering and throw.
Conclusion
Upgrading your Arrma Grom's servo mount is a relatively simple but highly effective upgrade that can significantly enhance the car's performance and durability. By choosing a high-quality aftermarket metal servo mount and following the installation instructions carefully, you can improve your steering precision, responsiveness, and protect your valuable servo from damage. Remember to always prioritize safety when working with RC models and consult detailed instructions for your specific parts.
