Fastrax Arrma Grom Granite Aluminium Rear Lower Arms Pair FTAR053B

Overview

The Fastrax Arrma Grom/Granite Aluminium Rear Lower Arms (PR) FTAR053B represent a premium suspension upgrade for owners of the Arrma 1/18 Granite Grom Monster Truck. These high-quality replacement arms are engineered to provide enhanced durability, improved handling characteristics, and greater longevity compared to standard plastic components. Whether you're a dedicated RC enthusiast in the UK looking to upgrade your Grom or Granite, or a competitor seeking to extract maximum performance from your machine, these aluminium lower arms deliver the reliability and precision engineering that serious RC drivers demand.

As part of Fastrax's extensive range of performance tune-up options, these rear lower suspension arms are manufactured to exacting standards using premium aluminium alloy construction. The use of lightweight yet rigid aluminium ensures that your RC monster truck UK model maintains optimal suspension geometry whilst reducing unsprung weight, which translates directly to improved handling and responsiveness on any terrain. This is a direct bolt-on replacement component that requires no modifications to your existing Arrma Granite Grom setup, making it an ideal upgrade for drivers who want to enhance their machine without the complexity of major overhauls.

These suspension arms come as a pair, providing both rear lower arms needed to complete your suspension tune-up. The precision engineering ensures perfect fitment with your Arrma Grom or Granite monster truck, and the superior material composition means you'll experience fewer breakages during aggressive driving or high-speed bashing sessions. Upgrading to aluminium suspension components is one of the most cost-effective ways to improve the durability and performance of your ready to run RC car.

Key Features

• Premium Aluminium Construction — Manufactured from high-grade aluminium alloy rather than plastic, these rear lower arms offer superior strength-to-weight ratio that dramatically reduces the likelihood of failure during aggressive driving, whether you're bashing in the garden or competing at your local RC club.
• Pair Included — You receive both rear lower suspension arms in this package, ensuring you have everything needed to complete your rear suspension upgrade without requiring multiple purchases.
• Direct Bolt-On Fitment — These arms are engineered as direct replacements for the standard plastic components on your Arrma Grom or Granite, requiring no modifications, drilling, or complex installation procedures, so you can get back to driving quickly.
• Enhanced Durability — The rigid aluminium construction significantly improves impact resistance and longevity compared to plastic alternatives, meaning fewer replacement parts required over the lifetime of your RC monster truck and better value for money.
• Improved Handling Characteristics — Aluminium arms maintain suspension geometry more precisely under load, providing more predictable handling, better cornering stability, and improved overall driving experience across all terrains.
• Lightweight Performance — Aluminium components reduce unsprung weight in the suspension system, which enhances acceleration response, braking performance, and overall chassis agility of your Arrma RC truck.
• Genuine Fastrax Quality — Fastrax is renowned throughout the RC community for producing high-quality aftermarket components that meet and exceed original equipment standards, giving you confidence in your upgrade decision.

Technical Performance

These Fastrax rear lower suspension arms represent a significant step up in suspension technology for the Arrma 1/18 Granite Grom range. The precision-engineered aluminium construction provides exceptional rigidity and strength whilst maintaining minimal weight, crucial factors in maintaining optimal suspension performance. When compared to the standard plastic lower arms found on stock Granite Grom models, these aluminium replacements offer superior resistance to the impact loads experienced during aggressive off-road driving, bashing, and competitive racing. The material composition ensures that the arms retain their original geometry even after repeated impacts, which directly translates to more consistent handling characteristics lap after lap. The engineering behind these arms reflects Fastrax's deep understanding of what RC drivers need: durability without compromise, performance without complication, and reliability that stands up to the demands of serious driving. Whether you're running your Granite Grom on carpet, grass, dirt, or asphalt, these suspension arms will provide the foundation for confident, predictable handling. The bolt-on design means installation takes only minutes, and you'll immediately notice the improved responsiveness and reduced flex in the rear suspension geometry. For UK RC enthusiasts seeking to extract maximum potential from their Arrma monster truck, upgrading the suspension to aluminium components is an investment that pays dividends in reliability and performance.

What's in the Box

• Fastrax Arrma Grom/Granite Aluminium Rear Lower Arms (Pair) FTAR053B
• Two precision-engineered aluminium lower suspension arms

Compatibility

• Arrma 1/18 Granite Grom Mega 380 Brushed 4x4 Monster Truck RTR (Red) - C-ARA2102T2
• Arrma 1/18 Granite Grom Mega 380 Brushed 4x4 Monster Truck RTR (Blue/Red) - C-ARA2102T1
• Arrma 1/18 Granite Grom Mega 380 Brushed 4x4 Monster Truck RTR (Green) - C-ARA2102T3

Frequently Asked Questions

• Will these aluminium rear lower arms improve my Arrma Granite Grom's performance? — Yes, significantly. The upgrade from plastic to aluminium construction provides measurable improvements in handling precision, durability, and suspension consistency. You'll notice crisper cornering response, more predictable behaviour during aggressive driving, and fewer suspension-related breakages. Many UK RC drivers find that upgrading to aluminium suspension components is one of the most effective performance modifications they can make to their monster truck.
• Are these arms easy to install? — Absolutely. These Fastrax arms are designed as direct bolt-on replacements for the standard plastic components on your Arrma Grom or Granite. Installation requires only basic tools and takes just a few minutes. No modifications or adjustments to your chassis are necessary, making this an ideal first upgrade for drivers new to tuning their RC cars.
• Will I need to adjust my suspension setup after installing these arms? — Not necessarily. Since these are direct replacements that maintain the same mounting points and geometry as the original components, your suspension should continue to work as before, but with improved performance and durability. However, if you're interested in fine-tuning your setup, the improved rigidity of aluminium components provides a stable platform for further adjustments.
• Why upgrade to aluminium instead of just replacing the plastic arms with more plastic? — Aluminium offers superior strength, reduced flex, better impact resistance, and improved longevity compared to plastic. Whilst plastic arms are adequate for casual driving, aluminium upgrades are particularly valuable if you enjoy aggressive bashing, regular off-road use, or competitive driving. The investment in aluminium components typically pays for itself through reduced breakage rates and extended component lifespan.
• Are these genuine Fastrax parts? — Yes. These arms are manufactured by Fastrax, a recognised leader in RC aftermarket components. When you purchase from RC Model Shop, you're receiving genuine Fastrax products backed by the company's reputation for quality and precision engineering.
• Will these fit my specific colour Granite Grom? — Yes. These suspension arms are compatible with all colour variants of the Arrma 1/18 Granite Grom Mega 380 Brushed 4x4 Monster Truck RTR, including the Red, Blue/Red, and Green versions. The arms are universal suspension components that work across the entire Grom range.
• How do these compare to other aftermarket lower arm options? — Fastrax components are manufactured to exacting standards and are recognised throughout the RC community for quality and reliability. The precision engineering ensures perfect fitment and superior performance compared to budget alternatives, making them an excellent investment for drivers serious about their RC monster truck setup.

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 REAR LOWER ARMS (PR) FTAR053B 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.