This Suspension Arm set provides an ideal replacement part for your ARRMA vehicle.
Features
- Tough composite material for increased crash resistance and long-lasting durability during the most extreme RC action
- Precision molding for smooth suspension operation in all conditions
Includes
2 x Upper Rear Suspension Arms
2 x Lower Rear Suspension Arms
2 x 4.8x4.9x2.5mm Balls
- Brand: ARRMA
- Model Number: Z-ARA330840
- Product Type: Rear Suspension Arm Set
- Compatible Vehicle Scale: 1/16
- Suspension Component Type: Rear Upper and Lower Arms
- Material: Composite
- Quantity in Set: 4 arms (2 upper, 2 lower)
- Ball Joint Size: 4.8x4.9x2.5mm
- Ball Joints Included: 2
- EAN: 5052127048026
- Compatible Models: ARRMA 1/16 MOJAVE GROM 223S BLX 4x4 DT, ARRMA MOJAVE GROM MEGA 380 Brushed 4x4, ARRMA 1/16 ARRMA MOJAVE GROM 4x4 RTA Race Kit
- Features: Precision molding for smooth suspension operation, tough composite material for crash resistance
Overview
The ARRMA Rear Suspension Arm Set B for the GROM is an essential replacement part for owners of the ARRMA 1/16 scale MOJAVE GROM 4x4 RC truck. Whether you're a dedicated RC car enthusiast in the UK or someone just discovering the excitement of small-scale 4WD off-road racing, this suspension arm set delivers the durability and performance you need to keep your GROM running at its best. The MOJAVE GROM is renowned for its compact size, aggressive styling, and genuine all-terrain capability, making it a favourite among RC hobbyists who want serious performance in a manageable 1/16 scale package.
Suspension components are critical to any RC vehicle's handling, stability, and overall performance. The rear suspension arms are particularly important as they connect the wheel hubs to the chassis, controlling the vehicle's movement through turns, over obstacles, and across challenging terrain. This genuine ARRMA suspension arm set ensures you have factory-specification components that maintain the precise geometry and performance characteristics your GROM was designed to deliver. When you upgrade or replace worn suspension parts with authentic ARRMA components, you're investing in reliability and maintaining the engineering excellence that makes the GROM such a capable performer.
ARRMA has built its reputation on producing tough, high-performance RC vehicles that deliver genuine excitement and durability. Every component, including this rear suspension arm set, has been engineered and tested to withstand the demands of serious RC bashing, racing, and exploration. If you're looking for a drop-in replacement to restore your GROM to factory specifications or if you're building up a complete spare set of parts, this rear suspension arm set is the obvious choice for UK RC enthusiasts who demand quality and authenticity.
Key Features
- Tough Composite Material Construction — This suspension arm set is manufactured from tough composite material that delivers exceptional crash resistance and durability during extreme RC action and challenging terrain driving. The material composition has been specifically engineered to absorb impacts and flex appropriately without breaking, which means your suspension arms can withstand the punishment of jumps, rough ground, and crashes that are part of the RC experience.
- Precision Molding Technology — Each arm is produced using precision molding techniques that ensure consistent geometry, smooth operation, and perfect fitment to your GROM's chassis. This precision manufacturing means the suspension operates smoothly in all conditions, from smooth carpet and hardpacked dirt to rocky terrain and loose gravel, maintaining responsive handling and predictable behaviour no matter where you drive.
- Factory-Specification Design — These arms are engineered to exact ARRMA specifications, which means they maintain the precise suspension geometry, ride height, and suspension travel characteristics that your GROM was designed with. Maintaining correct specifications is crucial for handling, traction, and overall performance.
- Complete Upper and Lower Arm Set — The package includes both upper and lower rear suspension arms (two of each), which means you can perform a complete rear suspension refresh or build a complete backup set of parts. This comprehensive approach saves you tracking down individual components and ensures a perfectly matched set.
- Integrated Ball Joint Components — Included with the arms are the necessary 4.8x4.9x2.5mm ball components, which provide the pivot points that allow the suspension arms to articulate and move freely. These balls enable the smooth, controlled movement that's essential for responsive suspension action.
Technical Performance
The ARRMA Rear Suspension Arm Set B has been engineered specifically for the 1/16 scale MOJAVE GROM 4x4 platform. The composite material used in these arms offers an excellent balance of strength, flexibility, and weight efficiency. Unlike plastic arms that can crack under load or aluminium arms that can bend and need adjustment, the composite material used here is engineered to absorb impacts, flex slightly when needed, and return to shape, providing consistent performance session after session. The precision molding process ensures that both the upper and lower arms are produced to identical specifications, meaning your vehicle will handle consistently across the rear suspension and maintain balanced performance left and right. The ball joint components included (4.8x4.9x2.5mm) are precisely sized to work with ARRMA's steering block and hub assembly, ensuring perfect fitment and smooth articulation. These suspension arms are an ideal choice for anyone running their GROM on the challenging UK terrain, from dry grass tracks and dirt jumps to wet, muddy courses where durability really matters. The composite construction also means these arms are genuinely affordable to replace if damaged during enthusiastic bashing or competition driving, making them practical spares for serious RC hobbyists.
What's in the Box
- 2 x Upper Rear Suspension Arms
- 2 x Lower Rear Suspension Arms
- 2 x 4.8x4.9x2.5mm Ball Joints
Compatible Vehicle Models
This rear suspension arm set is compatible with the following ARRMA MOJAVE GROM variants:
- ARRMA 1/16 MOJAVE GROM 223S BLX 4x4 Dual Time (available with and without battery and charger, in White and Teal colours)
- ARRMA MOJAVE GROM MEGA 380 Brushed 4x4 Small Scale Desert Truck RTR (available in Red and Blue)
- ARRMA 1/16 ARRMA MOJAVE GROM 4x4 RTA Race Kit (including Battery and Charger)
Frequently Asked Questions
- What suspension arms are compatible with the ARRMA MOJAVE GROM? — This ARRMA Rear Suspension Arm Set B is specifically designed and engineered for the ARRMA MOJAVE GROM 4x4 platform, including the brushless BLX models, the brushed MEGA 380 RTR models, and the RTA race kit variants. If you own any of these GROM models, this is the authentic replacement part you need.
- How often will I need to replace suspension arms on my RC GROM? — The lifespan of your suspension arms depends on your driving style and the terrain you tackle. Aggressive bashing, big jumps, and crashes will wear or damage arms more quickly than casual driving. The composite material in this set is designed for durability, but regular inspection of your suspension is good practice. Keep spare arms on hand, and you'll never be without a running vehicle.
- Are these composite arms or aluminium arms? — These suspension arms are manufactured from tough composite material, which offers excellent crash resistance and flexibility compared to rigid plastic or bent-prone aluminium. For the 1/16 GROM scale, composite arms provide the ideal balance of strength, durability, and affordability, making them the factory-standard choice.
- Can I use these arms as replacements if I've broken my originals? — Yes, absolutely. These are genuine ARRMA factory-specification components, so they are direct replacements for any worn or broken rear suspension arms on your GROM. Simply remove the old arms and install these new ones using the same fastening points.
- Is this suspension arm set suitable for beginners? — Yes. These arms are straightforward to install and require no special tools or expertise beyond basic RC knowledge. If you can use a hex driver and follow simple instructions, you can fit these arms yourself, making them ideal for both beginners and experienced RC builders.
- What is the difference between Set A and Set B? — ARRMA offers different suspension arm configurations (Set A, Set B, etc.) optimised for different driving styles and suspension geometry. Rear Suspension Arm Set B is the specific rear configuration engineered for the GROM platform. Always match the set letter when replacing parts to maintain proper suspension geometry.
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 ARRMA Rear Suspension Arm Set B: GROM Z-ARA330840 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.
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