Overview
The Fastrax Arrma Mojave Aluminium Rear Lower Arms (PR) represent a premium suspension upgrade for your RC car, designed specifically for the Arrma 1/16 Mojave Grom range. These lightweight yet robust aluminium components are engineered to enhance the performance and durability of your RC vehicle, making them an essential choice for anyone serious about getting the most out of their RC hobby. Whether you're enjoying casual weekend bashing sessions or pushing your RC car to its limits, these rear lower suspension arms deliver the reliability and performance you need.
Built from high-quality aluminium, these arms offer a significant weight reduction compared to standard plastic alternatives, which improves handling characteristics and overall vehicle dynamics. This upgrade is particularly popular amongst RC enthusiasts in the UK who are looking to enhance their Arrma Mojave Grom models with improved suspension geometry and durability. The replacement rear lower arms come as a pair, giving you a complete solution for refreshing your vehicle's rear suspension setup.
At RC Model Shop, we understand that RC car enthusiasts want genuine, quality parts that will perform reliably. These Fastrax suspension components are manufactured to exacting standards and are fully compatible with the Arrma Mojave Grom range, ensuring perfect fitment and optimal performance. Whether you're upgrading from worn-out components or simply looking to boost your vehicle's capabilities, this is an investment that will genuinely improve your RC experience.
Key Features
- Aluminium Construction — The use of lightweight aluminium material provides superior strength-to-weight ratio compared to plastic arms, resulting in reduced unsprung mass and improved suspension responsiveness.
- Pair Included — You receive both rear lower arms in this package, allowing you to completely refresh the rear suspension geometry of your Arrma Mojave Grom in one purchase.
- Precision Engineering — Fastrax components are manufactured with tight tolerances to ensure perfect fitment with original equipment, eliminating wobbles and ensuring consistent handling characteristics.
- Enhanced Durability — Aluminium arms are significantly more resistant to bending and cracking under load compared to plastic alternatives, particularly important when running on rough terrain or during aggressive driving.
- Improved Handling — The reduction in unsprung weight improves suspension response times and overall vehicle control, allowing for sharper cornering and more predictable handling characteristics.
- Direct Fitment — These arms are engineered as direct replacements for original components, requiring no modification or additional parts for installation.
Technical Performance
The Fastrax Arrma Mojave Aluminium Rear Lower Arms are engineered for the 1/16 scale RC market, specifically targeting the Arrma Mojave Grom platform. Constructed from high-grade aluminium alloy, these suspension components deliver a substantial weight savings whilst maintaining the structural integrity required for demanding off-road use. The aluminium material exhibits excellent fatigue resistance, which is crucial for maintaining consistent geometry over thousands of miles of driving. The precision-machined design ensures that suspension geometry is maintained exactly as originally specified, allowing the vehicle's handling to remain predictable and controlled. For RC enthusiasts in the UK seeking to upgrade their Arrma Mojave Grom models, whether it's the BLX brushless version, the MEGA 380 brushed edition, or the race kit variant, these arms are fully compatible and represent a worthwhile investment in suspension reliability and performance.
What's in the Box
- Pair of Fastrax Arrma Mojave Aluminium Rear Lower Arms
- All necessary hardware for installation
Frequently Asked Questions
- Are these rear lower arms compatible with all Arrma Mojave Grom models? — Yes, these arms are specifically designed for multiple Arrma Mojave Grom variants, including the 1/16 Mojave Grom 223S BLX 4x4 (available in White and Teal with battery/charger, or Black without), the Mojave Grom MEGA 380 Brushed 4x4 versions (available in Red and Blue), and the 1/16 Arrma Mojave Grom 4x4 RTA Race Kit. Always verify your specific model matches one of these variants before ordering.
- What advantages do aluminium arms offer over standard plastic? — Aluminium rear lower arms provide several key benefits: they are significantly lighter, reducing unsprung mass for improved suspension response and overall handling; they are much more durable and resistant to bending or cracking under load, particularly important for off-road use; and they maintain their shape more consistently over time, helping to preserve suspension geometry and handling characteristics throughout the lifetime of the component.
- Will these arms improve the handling of my Mojave Grom? — Yes, upgrading to aluminium suspension arms can noticeably improve handling by reducing unsprung weight, which makes the suspension more responsive to terrain changes. This results in sharper cornering, better traction consistency, and more predictable overall vehicle behaviour, particularly noticeable during rapid direction changes or aggressive driving.
- Are these arms easy to install? — These arms are designed as direct replacements for factory components, making installation straightforward for anyone with basic RC knowledge. As a suspension component, installation does require removing the vehicle's body and potentially draining shock fluid if you're working on the suspension system. If you're unsure about installation, our team at RC Model Shop can offer guidance and support.
- What is the part number for these arms? — The model number is FTAR078R. Always use this when ordering to ensure you receive the correct component for your Arrma Mojave Grom model.
- Should I upgrade both front and rear suspension arms? — Upgrading the rear arms will improve rear suspension response and durability. For a comprehensive suspension upgrade, many enthusiasts also consider upgrading the front arms for consistent performance across the entire vehicle. Check availability of matching front arm upgrades through RC Model Shop.
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 LOWER ARMS (PR) FTAR078R 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: FTAR078R
- EAN: 5056135785379
- Product Type: Suspension Upgrade - Rear Lower Arms
- Configuration: Pair of arms (PR)
- Material: Aluminium alloy
- Compatible Models: Arrma 1/16 Mojave Grom 223S BLX 4x4 (White), Arrma 1/16 Mojave Grom 223S BLX 4x4 (Teal), Arrma 1/16 Mojave Grom 223S BLX 4x4 (Black), Arrma Mojave Grom MEGA 380 Brushed 4x4 (Red), Arrma Mojave Grom MEGA 380 Brushed 4x4 (Blue), Arrma 1/16 Mojave Grom 4x4 RTA Race Kit
- Scale: 1/16
- Installation: Direct replacement for factory suspension arms
- Quantity Included: 2 arms (pair)
- Hardware: Includes all necessary installation hardware
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.
