Overview
The ARRMA Motor Mount Set (8pcs) Z-ARA320744 is an essential spare part for RC enthusiasts who own ARRMA small-scale vehicles. Whether you're a serious competitor, weekend basher, or exploring the world of RC cars in the UK, having quality replacement motor mounts on hand is crucial for maintaining peak performance and extending the lifespan of your vehicle. This comprehensive motor mount set provides multiple indexed mounting positions, allowing you to fine-tune your setup to match your driving style and track conditions. As an official ARRMA spare part, it's precision-engineered to deliver the exact fit and durability your RC car deserves.
Motor mounts are one of the most frequently replaced components in any RC car setup because they endure constant stress from acceleration, deceleration, and the torque generated by your brushed or brushless motor. The ARRMA Motor Mount Set delivers eight different mounting options in a single package, making it the smart choice for RC hobbyists who want to optimise their gear ratios and maintain consistent performance. Whether you're running a Granite Grom, Mojave Grom, or Typhon Grom model, this set provides the versatility you need to adapt your vehicle to different track layouts and driving conditions across the UK and beyond.
Built to the exacting standards you expect from ARRMA, these motor mounts are engineered with precision manufacturing techniques that ensure a consistent, rock-solid fit to your vehicle chassis every single time. The indexed design is particularly valuable because it gives you the flexibility to switch between different sized pinions without having to purchase multiple mounting solutions. This means you can increase or decrease your top speed, improve acceleration, or tailor your vehicle's performance characteristics to match specific racing formats or casual bashing scenarios.
Key Features
- Indexed Design for Gear Ratio Fine-Tuning — The indexed motor mount positions allow you to select from eight different mounting locations, enabling precise adjustment of your gear ratio by using different sized pinions without needing to purchase separate mounting hardware or modify your chassis. This feature is invaluable for racers and serious RC enthusiasts who want to optimise their setup for competitive advantage.
- Eight Different Mount Positions — This comprehensive set includes mounts labelled A/B through O/P, providing unprecedented flexibility in motor positioning and allowing you to experiment with various gear ratios to find the optimal balance between acceleration and top speed for your specific driving style.
- Tough Composite Material Construction — Manufactured from durable composite materials rather than plastic, these motor mounts are engineered to withstand the intense forces generated by modern brushless motors and the rigours of competitive RC racing, ensuring they won't crack, warp, or fail during high-performance driving sessions.
- Precision Manufactured Tolerances — Every motor mount is produced to exact specifications using precision manufacturing techniques, guaranteeing a consistent and perfect fit to your ARRMA vehicle chassis without requiring modification, filing, or adjustment. This precision ensures that your motor remains perfectly aligned for optimal power delivery and reliability.
- Complete Hardware Package — The set includes two M2.5 x 8mm cap head screws, providing all the fasteners you need to secure your chosen motor mount configuration to your chassis, eliminating the need to hunt for compatible hardware.
- Official ARRMA Spare Part — As a genuine manufacturer-authorised spare part, you can be confident that this motor mount set meets ARRMA's rigorous quality standards and will integrate seamlessly with your existing ARRMA vehicle.
Technical Performance
The ARRMA Motor Mount Set Z-ARA320744 represents the pinnacle of motor mount engineering for small-scale RC cars. These mounts are manufactured from tough composite materials specifically selected for their ability to absorb vibration, resist cracking under load, and maintain dimensional stability across thousands of cycles. The precision engineering ensures that motor alignment remains perfectly true, which is critical for preventing excessive wear on your motor bearings and gears. By offering eight indexed positions (A/B, C/D, E/F, G/H, I/J, K/L, M/N, and O/P), this set gives you the flexibility to adjust your pinion-to-spur gear mesh relationship without purchasing multiple mounting solutions. This indexed approach is particularly important for RC car performance because even small changes in gear ratio can dramatically affect acceleration characteristics, top speed potential, and overall responsiveness. Whether you're running a MEGA 380 brushed motor system or a modern brushless setup like the 223S BLX platform found in contemporary ARRMA models, these mounts provide the structural integrity and precision fit required for reliable, repeatable performance. The inclusion of M2.5 x 8mm cap head screws ensures secure fastening without stripping or loosening during intense driving sessions, and the composite material resists the corrosion and degradation that can affect metal fastening points in harsh outdoor conditions or wet weather RC bashing scenarios.
What's in the Box
- 1 x Motor Mount A/B
- 1 x Motor Mount C/D
- 1 x Motor Mount E/F
- 1 x Motor Mount G/H
- 1 x Motor Mount I/J
- 1 x Motor Mount K/L
- 1 x Motor Mount M/N
- 1 x Motor Mount O/P
- 2 x M2.5 x 8mm Cap Head Screws
Frequently Asked Questions
- Which ARRMA models are compatible with this motor mount set? — This motor mount set is officially compatible with a comprehensive range of ARRMA small-scale vehicles including the 1/18 Granite Grom series (MEGA 380 brushed 4X4 Monster Truck RTR in Blue/Red, Green, and Red variants), the 1/16 Mojave Grom series (223S BLX 4X4 DT with and without battery/charger, and MEGA 380 brushed 4X4 Small Scale Desert Truck RTR), the 1/16 Mojave Grom Race Kit, and the 1/14 Typhon Grom series (both 223S BLX 4X4 and MEGA 380 brushed 4x4 variants). Always verify your specific model number before ordering to ensure compatibility.
- What is the purpose of having eight different motor mount positions? — The eight indexed positions (A/B through O/P) allow you to adjust the distance between your motor and the spur gear, effectively changing your gear ratio. By selecting different motor mount positions and using appropriately sized pinion gears, you can optimise your RC car's performance for specific conditions — use closer pinion positions for higher top speed on open tracks, or further positions for improved acceleration and mid-range power for technical courses or off-road terrain.
- Are these motor mounts suitable for both brushed and brushless motors? — Yes, the ARRMA Motor Mount Set Z-ARA320744 is compatible with both MEGA 380 brushed motor systems and modern brushless 223S BLX systems found in current ARRMA small-scale vehicles. The indexed design and precision manufacturing ensure compatibility across the full range of compatible ARRMA models regardless of motor type.
- Do I need any additional parts to install these motor mounts? — The set includes two M2.5 x 8mm cap head screws, providing all the fasteners needed for a standard motor mount installation. However, you may need additional screws if you plan to install or swap between multiple motor mount configurations, or if you encounter any lost fasteners during maintenance.
- What makes these motor mounts better than cheaper alternatives? — These are genuine ARRMA spare parts manufactured to exacting precision standards, ensuring perfect fit and dimensional accuracy that prevents motor misalignment. The tough composite material resists cracking and warping under the intense forces generated by high-performance brushless motors, providing reliability and longevity that cheap aftermarket alternatives simply cannot match. Precision manufacturing also means your motor remains perfectly aligned for optimal power delivery and minimal wear on drivetrain components.
- Can I use these motor mounts on other RC car brands? — No, these are specifically designed for ARRMA vehicles and will not fit other manufacturers' chassis. Attempting to force fit them to incompatible vehicles may result in poor motor alignment, mounting damage, or safety hazards. Always use manufacturer-approved parts for your specific RC car model.
- How often should I replace my motor mounts? — Motor mounts typically require replacement when they become cracked, warped, or develop excessive wear that prevents proper motor alignment. Regular inspection before each driving session helps identify wear early. Competitive racers often replace motor mounts more frequently than casual bashers, but quality ARRMA mounts like these should provide many seasons of reliable performance with proper maintenance.
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 Motor Mount Set (8pcs) Z-ARA320744 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.
