Overview
The AXIAL Transmission 2-Speed Gear Set for the SCX10 is a premium upgrade component designed for RC enthusiasts who want to enhance the performance and versatility of their scale crawler. This precision-engineered transmission system allows your SCX10 to shift between two distinct gear ratios, giving you the flexibility to tackle varied terrain with optimised efficiency. Whether you're navigating steep rock faces that demand low-end torque or cruising across open ground where higher speeds are beneficial, this 2-speed transmission transforms how your RC car handles different driving situations. For serious RC car UK hobbyists and competitive crawlers alike, this Axial spare part represents a significant upgrade that showcases the attention to detail and engineering excellence Axial Racing brings to the off-road RC market.
This transmission component is purpose-built for the SCX10 platform and works seamlessly with the AX31439 SCX10 Transmission Set, making it an ideal choice for owners looking to expand their vehicle's capabilities. The 2-speed system introduces strategic gear management that allows drivers to select the optimal ratio for any given situation—essential for serious scale crawling where terrain changes rapidly. The included servo-operated shift mechanism means your transmission changes are controlled smoothly through your standard RC servo, integrating perfectly with existing radio systems without requiring additional electronics or modifications. This is genuine Axial Racing engineering, trusted by RC enthusiasts across the UK and worldwide.
Key Features
- 2-Speed Transmission System — The dual-ratio gearbox allows seamless switching between low and high-speed configurations, giving you the adaptability to optimise performance across different terrain types and driving scenarios. Low-speed gear provides maximum crawling torque for technical obstacles, whilst high-speed gear enables better performance on smoother sections.
- Servo-Controlled Shift Mechanism — The transmission shifts are managed through a standard-sized servo (23t, 24t or 25t horns compatible), meaning your existing radio system controls gear changes without additional electronics. This integration is straightforward and reliable, with no complex programming required.
- Precision 48-Pitch Gearing — The system utilises high-quality 48-pitch gears including a 48P 18T input gear and switchable 48P 26T and 28T high-speed options, along with the 48P 28T and 36T shift gears. This precision ensures smooth, quiet operation and excellent durability under the stresses of serious RC crawling.
- Durable Steel Slider Design — The 2-Speed Hi/Lo steel slider provides robust engagement and reliable shifting performance, designed to withstand the demanding conditions of off-road RC driving without slipping or hesitation.
- Complete Component Package — This set includes all necessary hardware, shifter forks, gears, bearings, E-clips, and linkage components needed to install a full 2-speed system, reducing the need to source parts from multiple suppliers.
- Quality Fasteners and Hardware — The kit includes a full range of precision fasteners including M2.6 and M3 hex socket screws, oversized flat head socket screws, and premium 5x11x4mm bearings, ensuring long-term reliability and easy maintenance.
- Authorised Axial Racing Component — As genuine Axial spare parts, these components meet the exact specifications and quality standards of the original equipment manufacturer, guaranteeing compatibility and performance.
Technical Performance
The AXIAL Transmission 2-Speed Gear Set represents the pinnacle of transmission engineering for 1/10 scale RC crawlers. Built with precision machining and high-quality materials throughout, this system is engineered to handle the extreme stresses of rock crawling and technical off-road driving. The dual-ratio design utilises 48-pitch gearing—a standard in performance RC applications—with carefully selected tooth counts that provide optimal torque delivery and speed characteristics for each configuration. The high-speed transmission includes both 48P 26T and 48P 28T options, allowing fine-tuning of your top-end performance, whilst the 2-speed shift gears (48P 28T and 48P 36T) create the actual gear ratio changes between modes. The system is driven by a 48P 18T input gear, establishing the foundation for the complete gear train. All rotating components are supported by 5x11x4mm precision ball bearings, ensuring smooth operation under sustained load. The hi/lo shifter mechanism employs a machined steel slider that engages and disengages the gear ratios with positive, reliable action—essential when navigating technical terrain where gear changes must be instantaneous and error-free. The servo-controlled shifter forks allow infinitely variable adjustment of shift point and feel through servo horn selection, making this system adaptable to different driving styles and terrain conditions. Every fastener, spring, and linkage component has been selected for durability and reliability, reflecting Axial's commitment to producing spare parts that exceed the demands of competitive and recreational RC enthusiasts throughout the UK and beyond.
What's in the Box
- AX31372 M2.6x8mm Hex Socket Flat Head Screws
- AXA0055 M2.6x12mm Flat Head Screws
- AXA117 M3x15mm Hex Socket Button Head Screws
- AXA0109 M3x10mm Oversized Flat Head Socket Screws
- AXA1392 E2 E-Clips
- AXA1391 E4 E-Clips
- AX30163 Pin 2.0x10mm
- AXA1221 Bearing 5x11x4mm
- AX31475 Machined Gear 48P 18T
- AX31130 High Speed Transmission Gear Set (48P 26T, 48P 28T)
- AX31440-4 2-Speed Shift Gear 48P 28T
- AX31440-5 2-Speed Shift Gear 48P 36T
- AX31334 2-Speed Hi/Lo Steel Slider
- AX31440-3 2-Speed Hi/Lo Shifter Fork
- AX31440-2 2-Speed Hi/Lo Shifter Fork
- AX31440-1 Spacer 6.5x24.5
- AX31009 Mini Servo Saver Mold
- AX31009 Servo Saver Spring
- AX80068 Linkage Set
What You Need to Complete
- AX31439 SCX10 Transmission Set (required for installation)
- Standard-sized servo with 23t, 24t or 25t horn (for shift control mechanism)
- SCX10 chassis (compatible with Axial 1/10 SCX10 II and other SCX10 variants)
Frequently Asked Questions
- What is the AXIAL Transmission 2-Speed Gear Set designed to do? — This component adds a switchable two-speed transmission to your SCX10, allowing you to shift between a low-speed, high-torque ratio and a high-speed ratio optimised for different terrain. The servo-controlled shift mechanism integrates with your existing radio system, letting you change gears on the fly during driving. This dramatically improves versatility when crawling mixed terrain where you need both extreme crawling ability and reasonable speed.
- Is this compatible with my SCX10? — Yes, this transmission is specifically engineered for the SCX10 platform and works with the AX31439 SCX10 Transmission Set. It is confirmed compatible with the Axial 1/10 SCX10 II Deadbolt 4WD and other SCX10 variants. Verify your chassis model before ordering.
- What servo do I need for the shift mechanism? — The kit is compatible with standard-sized servos with 23t, 24t or 25t horn splines. These are common servo sizes used in RC crawlers throughout the UK. Any standard-sized servo with adequate torque for servo horn operation will work; servos with around 30-60kg of torque are typical choices for reliable shift engagement.
- Is this suitable for beginners? — This is an advanced upgrade component intended for experienced RC hobbyists with existing mechanical knowledge. Installation requires understanding of transmission systems and involves precision assembly of multiple gears, shifter forks, and linkage components. This is not a plug-and-play component and requires mechanical aptitude, proper tools, and ideally some experience with RC mechanics. Experienced RC enthusiasts and competitive crawlers will find this product accessible and rewarding.
- What is included in this kit? — The complete 2-speed transmission kit includes all gears (input gear, high-speed gears, shift gears), shifter forks and slider, fasteners, bearings, E-clips, linkage components, and servo saver components. However, you will need to source the AX31439 SCX10 Transmission Set separately, as this kit works in conjunction with that component. Your vehicle's servo provides the shifting control.
- Can I fine-tune the gear ratios? — Yes. The system includes both 48P 26T and 48P 28T high-speed options, allowing you to adjust top-end performance to your preference. Additionally, the 2-speed shift gears (48P 28T and 48P 36T) create different low/high ratio spreads. Changing these components adjusts the overall performance characteristics of your transmission.
- What makes Axial Racing transmission systems reliable? — Axial uses precision 48-pitch gearing, high-quality ball bearings, durable steel shifter components, and premium fasteners throughout this kit. Every component is engineered to exacting standards and tested for durability under real crawling conditions. This represents genuine manufacturer engineering, not budget compromise.
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 Transmission 2-Speed Gear Set: SCX10 Z-AX31440 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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