Fastrax ARRMA Mojave Aluminium Rear Upper Arms Pair FTAR077R

Overview

The Fastrax ARRMA Mojave Aluminium Rear Upper Arms (pr) FTAR077R are premium suspension upgrade components designed specifically for ARRMA's popular Mojave Grom range of small-scale desert trucks. These high-quality aluminium rear upper arms represent an excellent choice for RC enthusiasts in the UK looking to enhance their vehicle's suspension geometry, durability and overall performance. Whether you're a seasoned RC car UK competitor or a weekend basher exploring the world of small-scale 4WD desert racing, these suspension components offer tangible benefits that make them worth considering as part of your upgrade strategy.

Manufactured by Fastrax, a recognised brand within the RC hobby community for producing reliable aftermarket parts and accessories, these rear upper arms are engineered to deliver superior performance compared to stock components. The use of premium aluminium construction ensures that these arms provide excellent strength-to-weight characteristics, meaning they resist flexing and bending during aggressive off-road driving while keeping overall vehicle weight minimal. For anyone running a ready to run RC desert truck and wanting to take their setup to the next level, these parts offer straightforward installation and immediate performance gains that many drivers will notice immediately.

These suspension arms come as a pair (pr) covering both rear positions, so you're getting a complete rear upper arm set in one purchase. Installation is typically straightforward for anyone with basic RC mechanical knowledge, making these parts accessible even to those new to suspension tuning on their small-scale desert trucks.

Key Features

• Aluminium Construction — Made from quality aluminium material, these arms deliver an excellent balance of strength and low weight, crucial for maintaining responsive handling and reducing unsprung mass that can affect suspension performance in small-scale RC trucks.
• Rear Upper Arm Pair — You receive both rear upper arms (pr) in this single purchase, providing a complete upgrade solution for your vehicle's rear suspension without needing to source components separately.
• Fastrax Quality Engineering — Produced by Fastrax, a manufacturer with a solid reputation for reliability and fit, these components are designed to exacting standards to ensure compatibility and durability with your ARRMA Mojave Grom desert truck.
• Enhanced Suspension Geometry — Upgrading from stock plastic arms to these aluminium alternatives can improve suspension geometry consistency and reduce deflection under load, translating to more predictable handling characteristics during fast off-road driving.
• Direct Compatibility — These arms are specifically engineered to fit ARRMA's Mojave Grom range including the 1/16 models and various motor configurations, ensuring perfect fitment without modification or guesswork.
• Durability Upgrade — Aluminium arms are significantly more resistant to breaking and cracking compared to plastic alternatives, particularly valuable if you regularly drive on rocky terrain or push your RC truck hard in desert-style courses.

Technical Performance

These Fastrax aluminium rear upper arms are precision-engineered components that represent a meaningful upgrade path for small-scale ARRMA Mojave Grom RTR trucks. The switch from plastic to aluminium construction provides substantial benefits in terms of rigidity and durability. Aluminium's superior strength characteristics mean these arms maintain their geometry under the stresses of hard cornering, braking and acceleration that characterise desert truck driving. In the context of small-scale 4WD trucks like the Mojave Grom, which typically features brushed or brushless electric powerplants and can achieve respectable speeds for its scale, having suspension components that flex minimally becomes increasingly important as drivers push harder and explore more demanding terrain. The material also provides better heat dissipation properties compared to plastic, which can be beneficial during extended driving sessions. These components represent the type of quality upgrade that forms the foundation of a well-tuned small-scale desert truck capable of handling both smooth tracks and rocky, technical ground effectively.

What's in the Box

• Fastrax ARRMA Mojave Aluminium Rear Upper Arms (pair)

Frequently Asked Questions

• Which ARRMA Mojave Grom models are these rear upper arms compatible with? — These Fastrax aluminium rear upper arms are specifically designed for the ARRMA Mojave Grom range, including the 1/16 Mojave Grom 223S BLX 4x4 models in both RTR and race kit configurations, as well as the Mojave Grom Mega 380 brushed variant. They are also compatible with the 1/16 Arrma Mojave Grom 4x4 RTA Race Kit. Always verify the exact model code of your truck before ordering to ensure perfect compatibility.
• Why should I upgrade from stock plastic arms to aluminium? — Aluminium arms offer several advantages over the plastic arms that come standard on many ready to run RC trucks. They provide superior rigidity, meaning less flexing and better suspension geometry consistency during hard driving, they are more resistant to cracking and breaking when you hit obstacles or land jumps hard, and they dissipate heat more efficiently. For anyone regularly driving their small-scale desert truck hard or on challenging terrain, upgrading to aluminium suspension components is one of the most effective tuning steps you can take.
• Are these suitable for beginner RC drivers? — These parts are suitable for drivers of all experience levels who want to improve their truck's performance and durability. If you're comfortable with basic RC maintenance and can follow installation instructions, fitting these arms is straightforward. However, they represent an upgrade rather than a necessity for brand-new beginners, so you may want to master the basics with your stock setup first before investing in suspension upgrades.
• How do these compare to other aftermarket suspension arms available for the Mojave Grom? — Fastrax is a well-established manufacturer of quality RC parts and upgrades. These arms represent a proven upgrade path chosen by many small-scale RC enthusiasts. When comparing suspension components, focus on material quality, exact compatibility with your specific truck model, and reviews from users with similar vehicles. These Fastrax arms are engineered specifically for Mojave Grom models, which gives them an advantage over generic or multi-fit alternatives in terms of fitment precision and geometry.
• Will upgrading to these aluminium arms noticeably improve my truck's handling? — Most drivers experience noticeable improvements in handling consistency and stability when upgrading suspension components from plastic to aluminium. You'll typically notice more predictable cornering, better bump absorption due to reduced arm flex, and improved overall chassis stability. The degree of improvement will depend on your driving style and the terrain you typically drive on, but suspension upgrades are among the most effective modifications for small-scale RC trucks.
• Do I need any special tools to install these arms? — Installation typically requires only standard RC tools such as hex wrenches and screwdrivers. Always consult the specific installation guide or video tutorials for your exact truck model to understand the installation process, but these are generally considered straightforward modifications that any RC enthusiast with basic mechanical skills can handle successfully.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the FASTRAX ARRMA MOJAVE ALUMINIUM REAR UPPER ARMS (PR) FTAR077R today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.