- Brand: ARRMA
- Model Number: ARA330655 / Z-ARA330655
- Part Type: Front Upper Suspension Arms
- Category: Chassis Parts / Suspension Spares
- Arm Length: 120mm (between inner hinge pin centre and outer end)
- Material: Tough composite material
- Design: Heavy-duty with strategic material placement for crash resilience
- Hinge Pin Holes: Precision-moulded for smooth, slop-free suspension action
- Contents: 1 x Front Upper Suspension Arm Left, 1 x Front Upper Suspension Arm Right
- Castor Adjustment Clips: 4 x 1mm clips, 2 x 2mm clips
- Quantity: Pair (Left and Right)
- Compatible Scales: 1/7 and 1/8 scale
- Compatible Models: ARRMA BIG ROCK 6S, FIRETEAM 6S, KRATON 6S, NOTORIOUS 6S, OUTCAST 6S, TALION 6S (all versions including EXB and AVC variants)
- EAN: 5052127036573
Overview
The ARRMA Front Upper Suspension Arms 120mm (Pr) Z-ARA330655 are essential replacement suspension components engineered for serious RC enthusiasts who demand durability and performance. Whether you're bashing on the weekends or pushing your brushless RC truck to its limits, these heavy-duty arms have been designed with ARRMA's reputation for toughness firmly in mind. These suspension arms are the perfect upgrade for anyone experiencing wear on their existing suspension, or for competitive racers looking to fine-tune their setup with precision components. As an authorised ARRMA retailer, RC Model Shop is proud to stock these genuine suspension parts for the UK RC community.
Built to withstand the punishment that comes with high-performance RC driving, these front upper suspension arms represent a critical investment in your vehicle's handling and longevity. The 120mm length provides the optimal geometry for the models they're designed to fit, ensuring your RC car maintains its intended suspension characteristics for consistent performance whether you're on tarmac, grass or dirt. Compatible with a range of ARRMA's most popular 1/7 and 1/8 scale brushless models, these arms give you the confidence to send it high with genuine ARRMA engineering behind every jump and landing.
ARRMA has engineered these suspension arms with strategic material placement to maximise crash resilience, meaning your RC car can take a hit and keep on running. The precision-moulded design ensures smooth, slop-free suspension action, which is critical for maintaining predictable handling through technical courses and aggressive cornering. For anyone serious about their RC hobby—whether that's competitive racing or weekend bashing—upgrading to quality suspension components like these ARRMA arms is a non-negotiable step towards peak performance.
Key Features
- Heavy-Duty Design with Crash Resilience — These suspension arms feature strategically placed material distribution that increases crash resistance compared to standard components, meaning your RC truck or buggy can absorb impacts without sustaining permanent damage or losing performance characteristics during critical moments on the track or field.
- Tough Composite Construction — Manufactured from tough composite material, these arms deliver the durability required for extended service life even under the demanding conditions of high-speed driving, repeated impacts and aggressive landing from large jumps, making them a long-lasting investment in your RC setup.
- Precision-Moulded Hinge Pin Holes — The hinge pin holes are precision-moulded to exacting standards, which ensures smooth, slop-free suspension action that translates to more predictable handling, better control through corners, and improved overall chassis geometry regardless of driving conditions on your RC car.
- 120mm Arm Length — At 120mm between the inner hinge pin centre and outer end, these arms maintain the exact geometry that ARRMA engineers specified for your vehicle, ensuring proper suspension angles, anti-squat characteristics and the handling balance you expect from your RC monster truck, speed truck or stunt truck.
- Included Castor Adjustment Clips — The package includes four 1mm and two 2mm castor adjustment clips, which allows you to fine-tune your front end geometry to suit your driving style, track conditions or racing setup without requiring additional purchases, giving you immediate tuning flexibility right out of the box.
- Supplied as a Pair — You receive both a left and right front upper suspension arm, meaning you have everything needed for a complete front suspension refresh on your RC vehicle without the need to purchase multiple kits.
Technical Performance
The ARRMA Front Upper Suspension Arms 120mm represent precision engineering at its finest, combining advanced materials with decades of off-road RC expertise. These composite arms are engineered to provide the structural rigidity necessary for high-speed runs while maintaining the flexibility required to absorb impacts from jumps and rough terrain. The 120mm length is the result of careful geometry calculations by ARRMA's engineering team, ensuring your vehicle maintains the correct suspension angles for optimal weight transfer, stability and cornering grip. The precision-moulded hinge pin holes eliminate the play and slop that can develop in lower-quality arms, which directly translates to tighter, more responsive steering inputs and improved suspension performance lap after lap. Whether you're running one of the compatible ARRMA 1/7 or 1/8 scale brushless models—including the BIG ROCK, FIRETEAM, KRATON, NOTORIOUS, OUTCAST and TALION—these arms are engineered to work seamlessly with your vehicle's original suspension geometry and damping characteristics. The inclusion of both 1mm and 2mm castor adjustment clips demonstrates ARRMA's commitment to allowing drivers to personalise their setups; castor angle has a significant impact on steering response, high-speed stability and cornering feel, and having multiple options means you can dial in the perfect setup for your driving style or track conditions. The composite material offers an excellent balance of weight savings and durability, keeping your unsprung mass low whilst maintaining the structural integrity needed for repeated impacts.
What's in the Box
- 1 x Front Upper Suspension Arm Left
- 1 x Front Upper Suspension Arm Right
- 4 x Castor Adjustment Clip 1mm
- 2 x Castor Adjustment Clip 2mm
Frequently Asked Questions
- What ARRMA models do these front suspension arms fit? — These ARRMA Front Upper Suspension Arms 120mm are compatible with a wide range of ARRMA models including the 1/7 BIG ROCK 6S, 1/7 FIRETEAM 6S, 1/8 KRATON 6S (all versions including EXB and AVC variants), 1/8 NOTORIOUS 6S (all versions), 1/8 OUTCAST 6S (including EXB and AVC), and 1/8 TALION 6S (including EXB and AVC). Always check your specific model number against the fitment list to confirm compatibility before purchasing.
- Why would I need to replace my suspension arms? — Suspension arms wear out or break through normal use, aggressive bashing, repeated crashes or extreme jumps. Replacing them restores your vehicle's original handling characteristics, eliminates worn-out play in the hinge pin holes, and can improve your RC car's overall performance and responsiveness on the track or field.
- What are castor adjustment clips and why are they included? — Castor angle refers to the forward or backward tilt of your suspension geometry, which significantly affects steering response, high-speed stability and cornering feel. The 1mm and 2mm clips allow you to adjust this angle to suit different track conditions, driving styles or race setups, giving you tuning flexibility without requiring separate purchases.
- Are these suitable for beginners? — These are replacement suspension components intended for owners of compatible ARRMA models who need to maintain or upgrade their vehicles. If you're completely new to RC, we recommend starting with a ready-to-run (RTR) model from ARRMA, and then exploring upgrade parts like these as your hobby progresses and you develop your skills and understanding of RC setup and maintenance.
- How do I know if my suspension arms are worn out? — Signs of worn suspension arms include excessive play or slop in your suspension, changes to your vehicle's handling characteristics compared to when it was new, visible cracks or damage to the arm material, or if your RC car feels less responsive in corners despite having fresh tyres and a properly tuned chassis. If you notice any of these issues, it's time to consider replacement.
- Are these genuine ARRMA parts? — Yes, these are genuine ARRMA parts supplied through authorised retailers. RC Model Shop is an authorised ARRMA dealer, which means you can purchase with confidence knowing you're receiving authentic components manufactured to ARRMA's exacting standards.
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 Front Upper Suspension Arms 120mm (Pr) Z-ARA330655 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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