- Product Type: Replacement suspension spring
- Manufacturer: Axial
- Manufacturer Part Number: AX30203
- Retailer Part Number: Z-AX30203
- Spring Dimensions: 12.5mm x 20mm
- Spring Rate: 6.53 lbs/in
- Spring Stiffness Grade: Firm
- Spring Colour: Yellow
- Quantity Included: 2 springs
- Tune-Up Type: Suspension
- Compatible Vehicle Platform: Axial SCX10 II
- Compatible Models: 1955 Ford F-100 4WD Truck RTR, 2017 Jeep Wrangler Unlimited CRC 4WD Rock Crawler RTR, SCX10 II 4WD Raw Builders Kit, SCX10 II 4WD Raw Builders Kit V2, Deadbolt 4x4 RTR, Jeep Cherokee 4WD Rock Crawler RTR, Jeep Cherokee 4WD Rock Crawler Kit, Trail Honcho 4WD Rock Crawler RTR, UMG10 4WD Rock Crawler Kit, UMG10 6x6 Rock Crawler RTR
- Colour-Coded: Yes, for easy identification
- EAN: 877493006556
Overview
The Axial Spring 12.5x20mm 6.53lbs in Firm Yellow is a premium suspension component designed for serious RC enthusiasts who demand precision tuning and optimal performance from their scale RC crawler. Whether you're navigating challenging terrain with your SCX10 II or fine-tuning your rock crawler setup for competition, these replacement springs give you complete control over your vehicle's suspension geometry and handling characteristics. Axial's comprehensive spring range allows you to dial in the perfect ride height, roll resistance and ground clearance for any driving condition, making this an essential upgrade for any RC car UK owner looking to maximise their crawler's capability on technical courses.
These colour-coded springs represent Axial's commitment to offering genuine performance tuning options that cater to drivers of all skill levels. From weekend bashers to competitive rock crawlers, having the ability to swap springs and immediately feel the difference in your RC vehicle's behaviour is crucial for getting the absolute best from your setup. The firm yellow spring profile is part of a carefully engineered range that spans from soft to stiff options, allowing you to build your ideal suspension platform. If you're serious about RC rock crawling in the UK and want to compete with purpose-built setups, these springs should be on your shopping list.
Compatible with numerous SCX10 II variants including the Ford F-100, Jeep Wrangler, Deadbolt, Jeep Cherokee and Trail Honcho models, these springs deliver the suspension refinement that separates casual drivers from committed enthusiasts. The yellow colour coding system makes identification and replacement quick and intuitive, eliminating confusion when you're swapping components trackside or in your workshop.
Key Features
- Firm Yellow Spring Rate — This spring rate of 6.53 lbs/in provides a stiffer suspension tune compared to softer options, offering improved roll stability and more responsive handling, particularly beneficial when navigating rough terrain or when you need to reduce body roll during aggressive driving.
- Optimised 12.5x20mm Dimensions — The precisely engineered 12.5mm diameter and 20mm length specifications ensure perfect compatibility with SCX10 II suspension geometry, delivering consistent performance and allowing you to maintain factory alignment and ride characteristics whilst upgrading suspension stiffness.
- Colour-Coded Design — The distinctive yellow colour provides instant visual identification of your spring rate, making it impossible to mix up different spring options in your parts box or during maintenance, streamlining your track day workflow and eliminating potential setup errors.
- Genuine Axial Engineering — Manufactured by Axial with the same precision tolerances and quality standards as original equipment components, ensuring these springs perform reliably through countless cycles and deliver consistent handling session after session.
- Premium Suspension Tuning — As part of Axial's full range spanning low through high rate options, these springs enable sophisticated suspension geometry experimentation, allowing you to adapt your RC crawler to different track conditions without replacing entire suspension arms or geometry components.
Technical Performance
The AXIAL Spring 12.5x20mm 6.53lbs represents a critical suspension component in the rock crawling and off-road RC community. At 6.53 lbs/in spring rate, this firm yellow option sits in the mid-range of Axial's spring lineup, providing a balanced platform between aggressive roll control and maintaining adequate suspension droop for trail articulation. The 12.5mm coil diameter is engineered specifically for the SCX10 II platform, ensuring the spring maintains proper seating in the suspension tower while delivering predictable load transfer characteristics. The 20mm length specification maintains factory ride height geometry whilst the increased spring stiffness directly improves platform stability during weight transfer, particularly noticeable during climbing, descending and cornering manoeuvres on rocky terrain. Axial's material science and heat-treating processes ensure these springs maintain their rate consistency across thousands of compression cycles, delivering reliable performance whether you're running a single weekend session or participating in competitive events across the UK. The engineering precision here cannot be overstated—these springs work in concert with your shocks, anti-roll bars and geometry setup to create a cohesive suspension system that responds predictably to driver inputs and terrain challenges.
What's in the Box
- Two Axial Spring 12.5x20mm 6.53lbs in Firm Yellow suspension springs
Frequently Asked Questions
- What spring rate should I choose for my SCX10 II rock crawler? — Axial offers springs ranging from low to high rate options. The 6.53lbs/in firm yellow spring is ideal if you prefer a stiffer setup that minimises body roll and provides sharper platform response. If you find your crawler too stiff or bouncy, softer options are available; conversely, if you want even more roll control, stiffer springs exist in the range.
- Are these springs suitable for beginners? — Whilst spring swapping is not complicated mechanically, choosing the correct spring rate requires understanding how suspension tuning affects your crawler's behaviour. Beginners can certainly use these springs, but should start with factory-recommended rates and adjust based on how their vehicle handles on their local terrain.
- Will these springs fit my specific SCX10 II model? — These springs are listed as compatible with SCX10 II 1955 Ford F-100, 2017 Jeep Wrangler Unlimited, SCX10 II 4WD Raw Builders Kit (both original and V2), SCX10 II Deadbolt, SCX10 II Jeep Cherokee, SCX10 II Trail Honcho and SCX10 II UMG10 variants. Check your specific model number against this compatibility list to confirm fitment.
- How do I know which spring rate to choose? — Spring selection depends on your terrain, driving style and current setup characteristics. Stiffer springs (higher lbs/in) reduce body roll and provide quicker platform response, making them ideal for rocky terrain and technical driving. Softer springs improve articulation and suspension travel compliance, beneficial on smoother surfaces and for general trail crawling. Experiment with different rates to dial in your preferred handling balance.
- Can I mix different spring rates front and rear? — Yes, many advanced drivers run different spring rates front and rear to tune platform bias and fine-tune handling characteristics. This is an excellent tuning option once you become familiar with how spring rates affect your crawler's performance.
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 AXIAL Spring 12.5x20mm 6.53lbs in Firm Yellow (2) Z-AX30203 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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