Overview
The Fastrax Arrma Grom/Granite Aluminium Front Upper Arms (PR) FTAR050R are premium suspension components designed to upgrade and enhance the performance of your 1/18 scale RC monster truck. These replacement front upper arms are engineered from high-quality aluminium, providing the perfect balance of lightweight construction and durability that serious RC enthusiasts demand. Whether you're a seasoned RC car UK hobbyist or looking to optimise your ready to run RC monster truck, these upper arms offer a direct bolt-on solution to improve suspension geometry, handling characteristics and overall driving experience on the track or off-road terrain.
ARRMA's Grom and Granite platforms have become beloved by RC enthusiasts across the UK for their robust construction and impressive performance capabilities. The Fastrax upgrade parts are manufactured to exacting standards, ensuring perfect fitment and reliability. These front upper arms are the ideal choice if you're experiencing wear on your original suspension components, or if you simply want to add a touch of precision engineering to your RC setup. By upgrading to aluminium upper arms, you'll benefit from improved responsiveness, better suspension tracking and enhanced durability compared to standard plastic alternatives.
This pair of upper arms represents excellent value for money and comes from Fastrax, a trusted name in RC performance tuning and aftermarket parts. Installation is straightforward, making these components suitable for anyone from beginners learning about RC suspension tuning to experienced competitors fine-tuning their machines for optimal performance. The aluminium construction ensures these parts will withstand the rigours of regular bashing, racing and off-road exploration whilst maintaining their structural integrity.
Key Features
- Aluminium Construction — Manufactured from lightweight yet rigid aluminium alloy, these upper arms deliver superior strength compared to plastic alternatives whilst keeping weight to a minimum, which directly translates to improved acceleration and handling responsiveness in your 1/18 scale RC truck.
- OEM Fitment — These upper arms are engineered to fit the Arrma Granite Grom monster truck range perfectly, ensuring seamless installation without modification or adjustment, allowing you to upgrade your suspension with confidence and without compatibility concerns.
- Pair Configuration — The package includes both left and right upper arms, providing complete front suspension upgrades so you can achieve balanced handling and performance across both sides of your RC monster truck simultaneously.
- Durability Enhancement — The robust aluminium material resists bending, flexing and stress fractures far better than plastic components, extending the service life of your suspension system and reducing the need for frequent replacements during intensive use.
- Performance Tuning — These upgraded upper arms allow you to adjust your RC truck's suspension geometry and camber angles more precisely, enabling fine-tuning of handling characteristics to suit your driving style, track conditions and personal preferences.
- Immediate Upgrade Path — Installing these parts is one of the quickest and most effective ways to notice a tangible improvement in your RC car's handling, making them an ideal first upgrade for anyone wanting to enhance their ready to run RC machine without major modifications.
Technical Performance
The Fastrax Arrma Grom/Granite Aluminium Front Upper Arms represent a significant engineering upgrade over standard plastic suspension components. Constructed from high-grade aluminium alloy, these upper arms deliver exceptional rigidity and durability whilst maintaining a lightweight profile essential for optimal 1/18 scale RC performance. The aluminium material offers superior resistance to bending under load, which is particularly important during aggressive cornering, jumping and high-speed manoeuvres on rough terrain. The precision-engineered design ensures perfect alignment with Arrma Granite Grom suspension geometry, maintaining factory specifications for ride height, camber angle and suspension travel. These components work in conjunction with your RC truck's existing suspension system—including shocks, anti-roll bars and lower arms—to provide balanced handling across all driving conditions. The durable construction means these upper arms will maintain their performance characteristics through countless hours of use, whether you're enjoying casual weekend bashing or more competitive racing. The upgrade to aluminium from plastic significantly improves the overall structural integrity of your front suspension system, reducing deflection during cornering and providing more predictable, responsive handling feedback to the driver. This is particularly noticeable when driving through technical sections or racing at higher speeds where suspension precision becomes critical to maintaining control and speed.
What's in the Box
- 1 x Pair of Fastrax Aluminium Front Upper Arms (Left and Right)
Frequently Asked Questions
- Are these upper arms compatible with my Arrma Granite Grom RC monster truck? — Yes, these Fastrax aluminium front upper arms are specifically engineered for the Arrma 1/18 Granite Grom monster truck range, including the Mega 380 brushed 4x4 models. They are also compatible with certain Granite variants. Always verify your specific model number before purchase to ensure compatibility with your particular RC truck.
- Will these upper arms improve my RC truck's handling? — Absolutely. The aluminium construction provides superior rigidity compared to plastic alternatives, which results in more precise suspension tracking, better cornering stability and improved overall handling response. You'll notice more predictable steering feedback and better traction control, particularly when driving aggressively or on challenging terrain.
- How easy is it to install these upper arms? — Installation is straightforward and requires only basic tools and mechanical knowledge. These upper arms bolt directly onto your existing suspension system without requiring modifications or special adjustments. Most RC enthusiasts can complete the installation in under 15 minutes. If you're new to RC maintenance, the simple bolt-on design makes this an ideal first upgrade for learning basic suspension tuning.
- Are these parts suitable for beginners? — Yes, these upper arms are perfect for beginners because they're simple to install and immediately noticeable in their performance benefits. Unlike complex tuning adjustments, upgrading to aluminium upper arms provides instant improvements to your RC truck's handling without requiring technical knowledge or trial-and-error testing.
- What's the difference between plastic and aluminium upper arms? — Plastic upper arms tend to flex and bend under load, particularly during aggressive driving or when landing jumps, which causes handling inconsistency and reduces responsiveness. Aluminium upper arms remain rigid under the same conditions, maintaining consistent suspension geometry and providing more precise, predictable handling. Additionally, aluminium parts are far more durable and resistant to cracking or breaking, extending the lifespan of your suspension components significantly.
- Will I need to replace anything else to use these upper arms? — No, these upper arms are a direct replacement for your existing front upper arms and work with all other standard Arrma Granite Grom components. You won't need any additional parts, modifications or adjustments to use them. Simply remove your old upper arms and install the new aluminium ones using the existing mounting points.
- Do I need special tools to install these? — Installation requires only basic RC tools including hex wrenches (which are typically included with ready to run RC trucks) and possibly a screwdriver. You may also want a small vice or suspension stand to hold your truck steady whilst working, but these aren't essential if you work carefully.
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 GROM/GRANITE ALUMINIUM FRONT UPPER ARMS (PR) FTAR050R 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.
- Product Type: Front Upper Suspension Arms (Pair)
- Brand: Fastrax
- Model Number: FTAR050R
- Material: Aluminium Alloy
- Compatible Scale: 1/18
- Compatible Models: Arrma Granite Grom Mega 380 Brushed 4x4 (All colour variants)
- Fitment: Front Suspension
- Configuration: Pair (Left and Right arms included)
- EAN Code: 5056135784921
- Category: Suspension Tune-Up Parts
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