- Manufacturer: ARRMA
- Model Number: Z-ARA320657
- EAN: 5052127039567
- Product Type: Front Upper Arm Adjustment Block Set
- Scale: 1/8
- Material: Tough composite material
- Active Caster Inserts: 8 pieces (4 pairs)
- Caster Positions: 4 different mounting positions
- Eccentric Upper Arm Inserts: 12 pieces
- Tuning Function: Camber and roll centre adjustment
- Compatible Vehicle: ARRMA 1/8 TLR Tuned TYPHON 6S 4WD BLX Buggy (C-ARA8406)
- Spare Part Category: Chassis Spares
- Required Components: ARA320644 (Front Shock Tower CNC 7075 T6 Aluminium), ARA320654 (Aluminium Adjustable Front Upper Suspension Mount), ARA330732 (Hinge Pin Upper 4x44.5mm 2pcs)
Overview
The ARRMA Front Upper Arm Adjustment Block Set Z-ARA320657 is a precision-engineered suspension tuning component designed for serious RC enthusiasts who demand the absolute best performance from their ARRMA 1/8 scale buggy. This specialist spare part offers an extensive range of suspension adjustments, allowing you to fine-tune your RC vehicle's handling characteristics to match your driving style, track conditions and personal preferences. Whether you're competing at the highest level or simply looking to optimise your RC car's performance at your local club, this adjustment block set gives you professional-grade tuning capabilities that were previously only available to top-level competitors.
Built with tough composite materials, this Front Upper Arm Adjustment Block Set combines durability with precision engineering to ensure consistent performance during extreme RC action. If you're serious about getting the most out of your ARRMA 1/8 RC buggy in the UK, this is an essential upgrade that belongs in your toolkit. The set includes multiple mounting positions and eccentric inserts, making it a comprehensive tuning solution that will allow you to dial in the perfect setup for any driving condition or racing scenario.
This is a genuine ARRMA spare part, manufactured to the highest standards and designed specifically for use with the ARRMA TLR Tuned TYPHON 6S 4WD BLX Buggy. By choosing this adjustment block set, you're investing in quality components that will enhance your RC experience and give you the competitive edge on the track or the trail.
Key Features
- Eight Active Caster Inserts — The set includes eight precision-manufactured active caster inserts that are arranged in four pairs, each pair offering a different mounting position in the front shock tower. This flexibility allows you to adjust the caster angle of your front suspension, which directly affects how your RC vehicle responds to steering inputs and how it recovers after cornering. Getting the caster angle right is crucial for optimising your buggy's handling performance.
- Twelve Eccentric Upper Arm Inserts — With twelve eccentric upper arm inserts included, you have twelve different fine-tuning options for adjusting your vehicle's front upper suspension camber and roll centre. Camber adjustment is essential for maintaining optimal tyre contact during aggressive cornering, while roll centre adjustment influences how your suspension moves under load. This level of tuning precision is what separates winning setups from average ones.
- Tough Composite Material Construction — Rather than relying on weaker plastic or inferior materials, this adjustment block set is manufactured from tough composite material specifically chosen for its durability and longevity. This ensures that even during extreme RC action, crashes, hard landings and intense track sessions, these components will maintain their integrity and precision tolerances for consistent performance over time.
- Precision Manufactured for Smooth Operation — Each component in this set has been precision-engineered to exacting tolerances, ensuring smooth and predictable suspension operation in all driving conditions. Whether you're racing on a smooth indoor circuit or bashing through rough outdoor terrain, you can rely on these components to deliver consistent, repeatable performance every single time you hit the track.
- Comprehensive Tuning Range — By combining the multiple caster positions with the twelve eccentric insert options, this set offers a truly comprehensive range of tuning possibilities. You're not limited to basic adjustments; instead, you have the freedom to make fine incremental changes to dial in your suspension to absolute perfection.
Technical Performance
The ARRMA Front Upper Arm Adjustment Block Set represents the pinnacle of suspension tuning technology for 1/8 scale RC buggies. The engineering behind this component set focuses on providing maximum adjustment range while maintaining precision and durability. The active caster inserts are specifically designed to work in conjunction with your front shock tower, offering four distinct mounting positions that allow you to progressively adjust caster angle. This is particularly valuable when dealing with different track conditions — a more aggressive caster angle might be preferred for high-speed track racing, whilst a milder angle could provide better stability on rough terrain. The twelve eccentric upper arm inserts represent the gold standard in suspension fine-tuning, allowing minute adjustments to camber angle and roll centre geometry. These adjustments have a profound effect on tyre contact patch, suspension response and overall handling balance. The tough composite material used throughout ensures these components resist wear, creep and degradation even under the extreme forces experienced during high-performance RC racing. Every component works seamlessly with the required front shock tower and aluminium adjustable front upper suspension mount, creating a fully integrated tuning system that delivers repeatable, measurable improvements in handling and performance.
What's in the Box
- 8 x Active Caster Inserts (arranged in 4 pairs for 4 different mounting positions)
- 12 x Upper Arm Eccentric Inserts
What You Need to Complete
- ARA320644 - Front Shock Tower CNC 7075 T6 Aluminium M (TLR)
- ARA320654 - Aluminium Adjustable Front Upper Suspension Mount (TLR)
- ARA330732 - Hinge Pin Upper 4x44.5mm (2pcs)
Frequently Asked Questions
- What is the ARRMA Front Upper Arm Adjustment Block Set used for? — This set is used to fine-tune the front upper suspension geometry of your ARRMA TLR Tuned TYPHON 6S 4WD BLX Buggy. It allows you to adjust caster angle (using the active caster inserts) and camber angle plus roll centre (using the eccentric upper arm inserts). These adjustments are fundamental to optimising your vehicle's handling, steering response and overall performance.
- Which ARRMA vehicles is this adjustment block set compatible with? — This set is specifically designed for the ARRMA 1/8 TLR Tuned TYPHON 6S 4WD BLX Buggy. Before purchasing, always verify compatibility with your specific model to ensure proper fitment and function.
- Do I need any other parts to install this adjustment block set? — Yes, this set must be used in conjunction with the ARA320644 Front Shock Tower (CNC 7075 T6 Aluminium), the ARA320654 Aluminium Adjustable Front Upper Suspension Mount, and the ARA330732 Hinge Pin Upper 4x44.5mm (2 pieces). Ensure you have all required components before beginning installation.
- How many different tuning options does this set provide? — With four different caster positions (from the eight active caster inserts arranged in pairs) and twelve different eccentric insert options, you have access to multiple suspension tuning configurations. This allows you to make precise adjustments to dial in your vehicle's handling for specific conditions or racing formats.
- Is this product suitable for beginners? — This is an advanced tuning component intended for experienced RC enthusiasts and racers who understand suspension geometry and tuning principles. If you're new to RC or suspension adjustments, we recommend learning the basics of suspension tuning before investing in these precision components, as incorrect adjustments could negatively impact handling.
- What material are these components made from? — The adjustment blocks are manufactured from tough composite material, chosen for its durability, dimensional stability and resistance to wear during intense RC racing and bashing sessions.
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 Arm Adjustment Block Set Z-ARA320657 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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