Overview
The Fastrax ARRMA Mojave Aluminium Front Upper Arms represent a premium upgrade for your 1/16 scale ARRMA Mojave GROM desert truck. Whether you're a dedicated RC enthusiast in the UK looking to enhance your off-road performance or a weekend basher seeking reliable suspension components, these aluminium front upper arms deliver the durability and precision engineering that serious RC car owners demand. Manufactured by Fastrax, a trusted name in RC parts and upgrades, these components are engineered to withstand the demanding conditions of desert-style racing and bashing.
Upgrading your RC truck's suspension is one of the most effective ways to improve handling, stability and longevity. The original plastic components found on many ready to run RC vehicles can wear quickly under hard use, but these aluminium upper arms offer a significant step up in strength and rigidity. If you're running a 1/16 scale ARRMA Mojave GROM—whether the BLX brushless model, the MEGA brushed variant, or the Race Kit version—these front upper arms are a direct bolt-on replacement that will transform your truck's performance characteristics and durability.
Available as a pair, these aluminium front upper arms are an essential part of any serious suspension tune-up for your small-scale desert truck. Built from premium aluminium alloy, they provide superior strength compared to plastic alternatives whilst maintaining the correct geometry and fitment for your ARRMA Mojave GROM.
Key Features
- Aluminium Construction — Machined from high-grade aluminium alloy, these upper arms offer exceptional strength and rigidity compared to plastic components, reducing flex during cornering and improving overall handling response of your 1/16 RC truck.
- Direct Fit Design — These arms are engineered as a direct replacement for the standard components, meaning they bolt straight onto your ARRMA Mojave GROM without requiring modification or additional parts, making installation straightforward for most RC enthusiasts.
- Supplied as a Pair — You receive both left and right front upper arms in this package, so you have everything you need for a complete front suspension upgrade on your RC car.
- Enhanced Durability — The aluminium construction dramatically increases the lifespan of these components compared to plastic alternatives, reducing the frequency of replacements and saving you money over time on wear and tear.
- Improved Suspension Geometry — Aluminium upper arms maintain precise geometry without deflection, resulting in more consistent handling characteristics and better predictability during fast cornering and jumps.
- Professional-Grade Upgrade — These arms are trusted by RC competitors and serious enthusiasts who demand the best performance from their 1/16 scale ARRMA vehicles, offering competition-level durability at an accessible price point.
Technical Performance
The Fastrax ARRMA Mojave Aluminium Front Upper Arms are engineered with precision using high-grade aluminium alloy, offering a substantial performance upgrade over the plastic suspension components found on stock ARRMA Mojave GROM models. The rigid aluminium construction eliminates the flex and deflection that occurs in plastic arms during hard cornering, aggressive braking and high-speed manoeuvres, which means your truck maintains better suspension geometry and responds more predictably to driver inputs. This translates directly into improved cornering speed, more consistent lap times if you're racing your RC car, and a more planted, stable feel during high-speed bashings across rough terrain. The engineering is meticulous—these arms are designed to slot directly into the existing suspension mounts on all compatible ARRMA Mojave GROM variants, including the 1/16 BLX brushless models (available in white, teal and black), the MEGA 380 brushed RTR versions (in red and blue), and the full race kit configuration. The material choice is deliberate: aluminium offers the perfect balance between weight savings (keeping your truck nimble and responsive) and structural strength (ensuring durability through repeated impacts and harsh driving conditions). Whether you're running your truck on a dedicated track, bashing through rough garden terrain, or participating in organised RC events across the UK, these arms will maintain their performance and geometry far longer than plastic alternatives, reducing downtime due to breakages and repairs.
What's in the Box
- Fastrax ARRMA Mojave Aluminium Front Upper Arms — Left (1)
- Fastrax ARRMA Mojave Aluminium Front Upper Arms — Right (1)
Frequently Asked Questions
- What ARRMA Mojave GROM models are these front upper arms compatible with? — These Fastrax aluminium front upper arms are designed to fit the complete range of 1/16 ARRMA Mojave GROM variants, including the BLX brushless 4x4 models with batteries and charger (white and teal variants), the BLX models without battery and charger (black variant), the MEGA 380 brushed RTR trucks (red and blue), and the complete 1/16 Race Kit configuration. They are a direct bolt-on replacement requiring no modifications.
- Will upgrading to aluminium front upper arms improve my RC truck's handling? — Yes, absolutely. The rigid aluminium construction eliminates the flex and deflection found in plastic arms, which means your suspension geometry remains consistent during hard cornering, braking and high-speed runs. This results in more responsive handling, better stability and improved predictability—especially noticeable when driving at speed or on rough terrain.
- How do aluminium arms compare to the plastic arms on my stock ARRMA Mojave GROM? — Aluminium arms offer several advantages: they don't flex during aggressive driving, they maintain precise suspension geometry, they last considerably longer before requiring replacement, and they give your truck a more professional, competition-grade feel. The trade-off is a slightly higher cost compared to plastic, but the durability and performance gains make it a worthwhile investment for serious RC enthusiasts.
- Are these arms suitable for a beginner? — These arms are suitable for any skill level. If you're new to RC and want to improve your truck's performance and durability from the outset, upgrading to aluminium components is a smart decision. Installation is straightforward—they bolt straight on like the original parts—and the performance improvement is immediately noticeable even if you're just learning to drive.
- Do I need any special tools to install these upper arms? — Installation should require only basic tools you likely already own—typically hex wrenches and a screwdriver. The arms are a direct fit, so no drilling or modification is needed. If you're unsure about the installation process, consult your ARRMA Mojave GROM manual or contact RC Model Shop for guidance.
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 ALUM FRONT UPPER ARMS (PR) FTAR075R 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: FTAR075R
- EAN: 5056135785348
- Tune-Up Type: Suspension
- Component Type: Front Upper Arms
- Material: Aluminium Alloy
- Configuration: Pair (Left and Right)
- Compatible Models: ARRMA 1/16 Mojave GROM 223S BLX 4x4 (White, Teal, Black), ARRMA Mojave GROM MEGA 380 Brushed 4x4 (Red, Blue), ARRMA 1/16 Mojave GROM 4x4 Race Kit
- Stock Status: In Stock (Manufacturer)
- RRP: £8.99
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.
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