- Product Type: Rear Lower Suspension Arms (Pair)
- Manufacturer: ARRMA
- Part Number: ARA330654
- Length between Hinge Pin Centres: 148mm
- Material: Composite
- Design Type: Heavy-duty with strategic material placement
- Features: Precision moulded hinge pin holes, sway bar mounting holes
- Suspension Action: Smooth slop-free operation
- Crash Resilience: Increased resistance through strategic design
- Durability: Long-lasting composite construction
- Quantity Included: 1 pair (left and right arms)
- Recommended with: ARA713032 Shock Mount Pin 3x33mm Silver (4pcs)
- Compatible Vehicles: ARRMA 1/7 and 1/8 scale models including BIG ROCK 6S 4X4 RTR, FIRETEAM 6S 4X4 RTR, KRATON 6S 4X4 RTR and variants, NOTORIOUS 6S 4X4 RTR and variants, OUTCAST 6S 4X4 RTR and variants, TALION 6S 4X4 RTR and variants
Overview
The ARRMA Rear Lower Suspension Arms 148mm (Pair) are heavy-duty replacement suspension components engineered for RC enthusiasts who demand durability and reliability from their vehicles. Whether you're upgrading your brushless RC monster truck, speed truck, or stunt truck, these rear lower suspension arms are designed with ARRMA's commitment to toughness in mind. These suspension arms are an essential upgrade for anyone running an ARRMA 1/7 or 1/8 scale RC vehicle, offering the crash resilience and smooth suspension action needed for aggressive bashing and competitive racing in the UK RC hobby community.
Built for performance and longevity, these composite suspension arms feature strategic material placement that increases crash resilience whilst maintaining the precision engineering required for smooth, responsive handling. If you're looking to repair damaged suspension components, upgrade to heavier-duty parts, or simply maintain your RC car UK in peak condition, these rear lower suspension arms deliver the quality and reliability that ARRMA is known for amongst RC enthusiasts. They're compatible with a wide range of ARRMA models including the BIG ROCK 6S, FIRETEAM 6S, KRATON 6S, NOTORIOUS 6S, OUTCAST 6S, and TALION 6S variants, making them a versatile choice for serious RC bashers and racers.
These suspension arms come as a matched pair—one left and one right—ready to install directly onto your ARRMA RC truck. The 148mm measurement between inner and outer hinge pin centres ensures precise fitment and proper suspension geometry, which is critical for maintaining your vehicle's handling characteristics and stability during high-speed runs and jumps. For anyone serious about keeping their ready to run RC truck in top condition, this is a genuine OEM part that delivers authentic ARRMA performance.
Key Features
- Heavy-Duty Design with Strategic Material Placement — These suspension arms are engineered with material distributed strategically throughout the component to increase crash resilience, meaning they're designed to absorb impacts and continue performing reliably even after aggressive landings and collisions that would damage inferior aftermarket alternatives.
- Tough Composite Material Construction — Manufactured from durable composite material that delivers both increased crash resistance and long-lasting durability, these arms won't become brittle over time and can handle repeated bashing sessions without cracking or breaking like cheaper plastic alternatives.
- Precision Moulded Hinge Pin Holes — The hinge pin holes are precision moulded to eliminate slop and play in the suspension, resulting in smooth, responsive suspension action that translates directly into better handling, improved cornering performance, and more predictable vehicle behaviour on the track or trail.
- Sway Bar Mounting Holes — These arms feature dedicated sway bar mounting holes, giving you a wide selection of handling options to fine-tune your vehicle's anti-roll behaviour and adjust the balance between stability and cornering speed to match your driving style and local track conditions.
- 148mm Hinge Pin Centre Distance — The specific 148mm measurement between inner and outer hinge pin centres ensures perfect suspension geometry and fitment on compatible ARRMA models, maintaining the correct suspension angles and travel for optimal performance.
- Supplied as a Pair — You receive both left and right suspension arms in a single purchase, eliminating the need to buy two separate products and ensuring perfectly matched components for balanced suspension performance across the rear axle.
Technical Performance
These ARRMA Rear Lower Suspension Arms represent a significant step up in suspension performance for anyone running a brushless RC monster truck, speed truck, or stunt truck in the 1/7 or 1/8 scale categories. The composite material construction strikes an excellent balance between weight, strength, and impact absorption, making these arms ideal for both high-speed bashers and competitive racers who demand reliability from their equipment. The precision moulded hinge pin holes are a standout engineering feature—they eliminate the play and slop that develops in suspension components over time, which directly translates to more responsive steering input, better traction control, and improved consistency lap after lap. The strategic placement of material throughout the arm maximises crash resilience by concentrating strength where stresses are greatest, whilst keeping unnecessary weight to a minimum. The 148mm specification is critical for proper suspension geometry on compatible models, ensuring correct suspension angles, ride height, and suspension travel. The inclusion of sway bar mounting holes provides extensive tuning flexibility, allowing drivers to adjust handling characteristics by selecting different anti-roll bar stiffness levels or mounting positions. These are genuine OEM parts manufactured to ARRMA's exacting standards, guaranteeing fitment and performance with your ready to run RC vehicle.
What's in the Box
- 1 x Rear Suspension Arm - Left
- 1 x Rear Suspension Arm - Right
What You Need to Complete
- ARA713032 - SHOCK MOUNT PIN 3x33mm (Silver) (4pcs) — Required for installation
Frequently Asked Questions
- Are these rear lower suspension arms compatible with my ARRMA RC truck? — These 148mm rear lower suspension arms are compatible with a comprehensive range of ARRMA 1/7 and 1/8 scale models including the BIG ROCK 6S 4X4 RTR, FIRETEAM 6S 4X4 RTR, KRATON 6S 4X4 variants (including the EXB and AVC versions), NOTORIOUS 6S 4X4 variants, OUTCAST 6S 4X4 variants (including the EXB AVC version), and TALION 6S variants (including the EXB AVC version). Check the comprehensive fitment list on the manufacturer's website or contact our expert team to confirm compatibility with your specific model.
- What is the 148mm measurement and why does it matter? — The 148mm measurement refers to the distance between the inner and outer hinge pin centres on the suspension arm. This precise specification is critical for maintaining correct suspension geometry, ride height, and suspension travel on your RC vehicle. Using the correct measurement ensures your truck handles predictably and maintains the suspension angles that the vehicle was engineered for.
- Do I need any additional parts to install these suspension arms? — Yes, you will also need the ARA713032 SHOCK MOUNT PIN 3x33mm (Silver) (4pcs) to complete the installation. These shock mount pins are essential components that connect the suspension arms to the shock absorbers and other chassis components.
- What makes these suspension arms more durable than standard parts? — These ARRMA suspension arms are engineered with heavy-duty design principles and strategic material placement throughout the component. This means the composite material is distributed where stresses are greatest, creating a stronger, more crash-resilient component that resists breaking under impacts that would damage inferior alternatives. The precision moulding process also eliminates weak points and ensures consistent quality across every pair.
- Can I use these suspension arms if I bash my RC truck aggressively? — Absolutely. These are specifically designed for aggressive bashing and high-impact use. The heavy-duty construction and strategic material placement create a component that's engineered to absorb impacts and continue performing reliably even after repeated hard landings and collisions. They're an excellent choice for weekend bashers who put their vehicles through punishing conditions.
- How do the sway bar mounting holes improve my truck's handling? — The sway bar mounting holes allow you to adjust your vehicle's anti-roll behaviour by selecting different anti-roll bar stiffness levels or adjusting mounting positions. This gives you extensive tuning flexibility to fine-tune the balance between stability during cornering and responsive steering input, allowing you to optimise handling characteristics for your driving style and local conditions.
- Are these genuine ARRMA parts? — Yes, these are genuine OEM (Original Equipment Manufacturer) parts produced by ARRMA to their exacting quality standards. Using genuine ARRMA parts ensures perfect fitment, reliable performance, and compatibility with your vehicle.
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 Rear Lower Suspension Arms 148mm (Pr) 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.
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.
