Overview
The Fastrax Arrma Grom/Granite Aluminium Front Lower Arms (PR) FTAR051BK represent a premium upgrade for owners of the Arrma 1/18 Granite Grom monster truck series. Whether you're a dedicated RC enthusiast in the UK looking to enhance your off-road performance or a weekend basher seeking improved durability, these precision-engineered aluminium suspension components deliver the strength and reliability you need. Designed specifically for the Granite Grom platform, these front lower arms are engineered to withstand the demands of aggressive driving, rough terrain, and competitive use whilst maintaining the lightweight characteristics that keep your RC car responsive and quick.
Suspension geometry is critical in RC performance, and the front lower arms play a vital role in how your vehicle handles, corners and absorbs impacts from obstacles. By upgrading from standard plastic arms to premium aluminium construction, you're investing in components that resist bending, cracking and permanent deformation — issues that commonly plague stock plastic parts during intense RC driving sessions. This pair of front lower arms ensures your Granite Grom maintains consistent handling characteristics across multiple driving sessions, whether you're tackling garden terrain, outdoor tracks or competitive racing circuits throughout the UK.
As an authorised Fastrax retailer, RC Model Shop stocks genuine Fastrax products that meet manufacturer specifications and quality standards. These aluminium front lower arms are a direct replacement suspension upgrade that bolts straight onto your Arrma Granite Grom, requiring no modification or additional tuning to install.
Key Features
- Aluminium Construction — Unlike plastic alternatives, aluminium arms offer superior strength-to-weight ratio, resisting bending and permanent deformation during aggressive driving, impacts and rough terrain use, making them ideal for RC car enthusiasts who demand durability without added weight.
- Direct Compatibility — These front lower arms are specifically engineered to fit the Arrma 1/18 Granite Grom Mega 380 monster truck, ensuring perfect fitment and alignment without modification, allowing immediate installation and performance improvement.
- Pair Package — You receive both left and right front lower arms in a single purchase, meaning complete front suspension coverage with no need for separate orders or additional components.
- OEM Fastrax Quality — Manufactured by Fastrax, the recognised specialist in RC suspension upgrades, these arms meet strict quality control standards and are designed to complement the original vehicle engineering and suspension geometry.
- Enhanced Durability — The upgrade from standard plastic construction to aluminium significantly extends component lifespan, reducing the frequency of suspension replacements and repairs, which saves money and keeps your RC car on the track longer.
- Improved Handling — Rigid aluminium construction maintains consistent suspension geometry throughout your driving session, preventing the flex and movement associated with plastic parts, resulting in more predictable cornering and more responsive vehicle control.
Technical Performance
The Fastrax aluminium front lower arms represent a significant engineering upgrade that transforms the suspension characteristics of your Arrma Granite Grom 1/18 monster truck. Aluminium's inherent properties — high strength combined with low density — make it the material of choice for serious RC enthusiasts throughout the UK who demand performance. Where plastic lower arms flex and bend under the forces generated by high-speed cornering, impacts with obstacles and the repetitive stress of racing, aluminium arms maintain their geometry and resist permanent deformation. This consistency in suspension geometry translates directly to predictable handling and improved lap times. The engineering precision required to manufacture these components ensures that suspension linkage angles remain accurate across hundreds of driving sessions, whereas plastic alternatives gradually lose their original geometry and require replacement. For drivers of the Arrma Granite Grom Mega 380 Brushed 4x4 platform — available in Blue/Red, Green, and Red colour variants — these arms provide the foundation for reliable, consistent performance whether you're bashingthrough garden terrain or competing in organised RC events. The weight saving compared to heavier aftermarket alternatives keeps your vehicle light and agile whilst the material strength ensures crash resilience. Installation is straightforward, requiring basic RC tools and knowledge, making this an accessible upgrade even for intermediate-level RC car owners.
What's in the Box
- Fastrax Arrma Grom/Granite Aluminium Front Lower Arm (Left)
- Fastrax Arrma Grom/Granite Aluminium Front Lower Arm (Right)
Compatibility
- Arrma 1/18 Granite Grom Mega 380 Brushed 4x4 Monster Truck RTR (Blue/Red) — Part number C-ARA2102T1
- Arrma 1/18 Granite Grom Mega 380 Brushed 4x4 Monster Truck RTR (Green) — Part number C-ARA2102T3
- Arrma 1/18 Granite Grom Mega 380 Brushed 4x4 Monster Truck RTR (Red) — Part number C-ARA2102T2
Frequently Asked Questions
- Will these aluminium front lower arms fit my Arrma Granite Grom? — Yes, these Fastrax front lower arms are specifically engineered for the Arrma 1/18 Granite Grom Mega 380 Brushed 4x4 platform and provide direct fitment without modification. They are designed as a direct replacement for the stock plastic suspension arms.
- Why should I upgrade to aluminium front lower arms instead of replacing with plastic parts? — Aluminium offers vastly superior durability and strength compared to plastic. While plastic arms flex and bend under stress, aluminium maintains its shape and resists permanent deformation, meaning your suspension geometry stays consistent across hundreds of driving sessions. You'll experience improved handling, faster lap times, and less frequent replacements, ultimately saving money and keeping your RC Granite Grom running reliably.
- Are these arms suitable for beginner RC drivers? — These suspension arms are suitable for drivers of all skill levels, from beginners to advanced competitors. However, they represent a performance upgrade and provide the most significant benefits to drivers who regularly bash or race their Granite Grom. Beginners will appreciate the increased durability and reliability, whilst experienced drivers will notice the improved handling consistency.
- Do I need any special tools to install these front lower arms? — Installation requires basic RC tools including hex wrenches, screwdrivers and potentially a suspension geometry setup guide specific to the Granite Grom platform. Most RC enthusiasts can complete installation in 15-20 minutes. If you're unsure about installation, our team at RC Model Shop can provide guidance or support.
- What is the difference between these Fastrax aluminium arms and the standard plastic stock arms? — The primary differences are material (aluminium versus plastic), durability, and weight. Aluminium arms resist bending and deformation, maintain consistent suspension geometry throughout extended use, and last significantly longer than plastic alternatives. Plastic arms, whilst lighter in some cases, flex under load and can permanently deform from impacts, affecting suspension geometry and handling. For serious RC enthusiasts, the improved performance and longevity of aluminium arms justifies the upgrade investment.
- Do these arms come as a pair? — Yes, you receive both left and right front lower arms in this purchase, providing complete front suspension coverage.
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 LOWER ARMS (PR) FTAR051BK 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.
- Brand: Fastrax
- Product Code: FTAR051BK
- Tune-Up Type: Suspension
- Component Type: Front Lower Arms
- Material: Aluminium
- Configuration: Pair (left and right)
- Compatible Vehicle: Arrma 1/18 Granite Grom Mega 380 Brushed 4x4 Monster Truck RTR
- Compatible Models: C-ARA2102T1 (Blue/Red), C-ARA2102T2 (Red), C-ARA2102T3 (Green)
- EAN: 5056135784938
- Availability: In Stock
We want to make sure your delivery goes smoothly, so here are some important details about our service:
- For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
- Most of our products include delivery in the price. If your order is under £90, a small delivery fee will apply but do not worry this will always be clearly shown at checkout before you complete your purchase.
- Depending on what you choose at checkout, your order will usually be delivered either the next working day or within 2 working days. For next day delivery please place your order before 2:00pm. Orders are dispatched Monday to Friday only. Some items may take a little longer and if that is the case we will always show the expected delivery time on the product page.
- If your order includes items with different dispatch times we will normally wait and send everything together once all items are in stock. If one of the items is going to take a while we will give you the choice either wait for everything to arrive or let us send the available items now and deliver the rest later. It is up to you.
- We use trusted delivery partners to make sure your order gets to you safely and on time. We use DPD for next working day deliveries and Royal Mail for the 2 day option.
- As soon as your order is on its way we will send you a tracking number by email. If you provide your mobile number at checkout we will also send delivery updates straight to your phone so you can keep an eye on progress.
- If a product is marked as "Dispatched within 3 working days" delivery usually takes around 3 to 5 working days from when your order is placed.
- For customers in Inverness and other parts of the Scottish Highlands deliveries can take up to 2 working days even if you select next day delivery as couriers do not currently offer a guaranteed next day service to those areas.
