The Spektrum P-SPMSS6485 S6485 HV servo with 496 oz-in torque, 0.10 sec speed, and 25T output spline is engineered for uncompromising control in 1/8 scale RC crawlers, racers, and scalers. Designed to deliver class-leading torque and rapid response, this digital surface servo integrates a powerful coreless motor, hardened steel gears, and a precision gear mesh into a sleek anodized aluminum housing. Whether navigating technical terrain or executing high-speed maneuvers, the Spektrum P-SPMSS6485 offers the mechanical resilience and control fidelity required for competitive off-road builds. With waterproof protection, dual bearings, and a removable lead system, this servo is built to perform in the harshest conditions without sacrificing responsiveness or reliability.
Key features of the Spektrum P-SPMSS6485 S6485 HV servo
- 25T output spline – ensures secure arm compatibility across standard surface platforms
- Coreless motor – delivers ultra-smooth acceleration and high-speed response
- Hardened steel gear train – engineered for tight mesh and long-term durability
- Dual output shaft bearings – supports consistent torque delivery and smooth rotation
- Waterproof anodized aluminum case – protects internal components and dissipates heat
- Removable lead system – enables flexible installation and simplified maintenance
- Standard-size footprint – optimized for 1/8 scale RC vehicles
How does the coreless motor enhance performance in the Spektrum P-SPMSS6485?
The Spektrum P-SPMSS6485 digital servo for 1/8 scale RC crawlers, racers, and scalers with coreless motor features a motor architecture designed for speed and precision. Unlike brushed motors, the coreless design eliminates iron cores, reducing rotational inertia and enabling faster acceleration. This results in a transit speed of just 0.10 seconds at 8.4V, allowing for rapid steering corrections and throttle modulation. The motor’s efficiency also contributes to smoother operation and reduced heat buildup, making it ideal for sustained use in competitive environments. Whether you're navigating tight corners or scaling uneven terrain, the coreless motor ensures that every input is executed with minimal delay and maximum control.
What makes the gear train of the Spektrum P-SPMSS6485 ideal for high-load applications?
The Spektrum digital surface servo with hardened steel gears, 496 oz-in torque, and 0.10 sec transit speed is equipped with a gear train engineered for strength and precision. Hardened steel components are selected for their resistance to wear and deformation, especially under the high torque loads typical of off-road racing and crawling. The gear mesh is tightly calibrated to minimize backlash and ensure smooth torque transfer, even during aggressive maneuvers. This design not only enhances control fidelity but also extends the operational life of the servo, making it a reliable choice for users who push their vehicles to the limit.
Why is the 25T output spline important for compatibility and control?
The Spektrum P-SPMSS6485 S6485 HV servo with 496 oz-in torque, 0.10 sec speed, and 25T output spline features a 25-tooth spline that aligns with standard servo arms used across most surface RC platforms. This ensures a secure mechanical connection between the servo and steering or throttle linkages, minimizing slippage and maximizing control accuracy. The 25T spline also supports a wide range of aftermarket accessories, giving builders flexibility in customizing their setups. By standardizing the output interface, Spektrum enhances both compatibility and torque transmission, making the S6485 a reliable choice for demanding applications.
How do dual bearings improve torque delivery and longevity?
The Spektrum P-SPMSS6485 with removable lead, dual bearings, and precision gear mesh incorporates dual output shaft bearings to support smooth rotation and reduce friction. This design minimizes lateral play and maintains gear alignment under load, resulting in more consistent torque delivery and precise movement. Dual bearings also extend the lifespan of the servo by distributing mechanical stress more evenly across the shaft. For racers and crawlers who rely on split-second steering corrections, this feature ensures that the servo responds predictably and efficiently, even under extreme conditions.
Is the Spektrum P-SPMSS6485 suitable for wet and rugged terrain?
Absolutely. The HV-compatible servo with 6.0–8.4V input, waterproof housing, and tight gear tolerances is built to withstand the elements. Its anodized aluminum case provides both structural reinforcement and thermal regulation, while the waterproof sealing protects internal electronics from moisture and debris. This makes the servo ideal for off-road racing, trail crawling, and bashing in unpredictable conditions. The compact dimensions—35mm in height and 41mm in length—allow for easy integration into tight chassis spaces without compromising performance or durability. Whether you're driving through mud, water, or rocky terrain, the S6485 maintains consistent control and reliability.
How does the removable lead system support flexible installation?
The Digital surface servo for extreme terrain with 35mm height, 41mm length, and 2.80 oz weight includes a detachable wiring system that allows users to select lead lengths based on their chassis layout. This modular approach simplifies routing and maintenance, enabling clean setups and quick swaps during upgrades or repairs. The removable harness also reduces clutter and improves airflow within the chassis, contributing to overall system efficiency. For builders who prioritize clean installations and serviceability, this feature adds significant value to the Spektrum P-SPMSS6485.
Why is the Spektrum P-SPMSS6485 a top-tier choice for competitive RC builds?
The Spektrum P-SPMSS6485 high-performance surface servo with hardened steel gears and anodized aluminum case combines cutting-edge motor technology, precision engineering, and robust protection features into a single high-performance unit. Its coreless motor delivers unmatched speed and efficiency, while the hardened steel gear train ensures reliable torque transfer under load. Dual bearings and waterproof construction provide mechanical resilience, and the removable lead system supports flexible installation. With compatibility across 1/8 scale platforms and optimized dimensions for tight chassis layouts, the Spektrum P-SPMSS6485 is a standout option for users who demand excellence in every aspect of their build.
Buy Spektrum P-SPMSS6485 S6485 HV servo for 1/8 scale RC trucks, crawlers, and competitive off-road builds.
Brand, Model and Product Type
- Brand: Spektrum
- Model: P-SPMSS6485
- Product Type: Spektrum P-SPMSS6485 S6485 HV servo with 496 oz-in torque, 0.10 sec speed, and 25T output spline, Spektrum P-SPMSS6485 digital servo for 1/8 scale RC crawlers, racers, and scalers with coreless motor, Spektrum P-SPMSS6485 high-performance surface servo with hardened steel gears and anodized aluminum case, Spektrum P-SPMSS6485 with removable lead, dual bearings, and precision gear mesh, Digital surface servo for extreme terrain with 35mm height, 41mm length, and 2.80 oz weight
Dimensions
- Product Length: 4.1 cm – compact footprint for 1/8 scale surface installations
- Product Height: 3.5 cm – optimized for high-clearance chassis layouts
- Product Width: 2.1 cm – standard mounting width for surface servo configurations
- Product Weight: 2.80 oz – balanced for torque output without compromising agility
Motor and Gear System
- Motor Type: Coreless – delivers ultra-smooth acceleration and high-speed response
- Gear Type: Metal – includes hardened steel gears for enhanced durability
- Gear Mesh: Precision-engineered – ensures tight tolerances and minimal wear
- Spline Count: 25 teeth – compatible with standard servo arms
Performance and Speed
- Maximum Torque: 496 oz-in @8.4V – delivers class-leading torque for demanding terrain and steering loads
- Transit Speed: 0.10 sec @8.4V – rapid response for competitive maneuvering
Voltage and Compatibility
- Operating Voltage: 6.0–8.4V HV – supports high-voltage systems for peak performance
- HV Compatibility: Yes – optimized for 2S LiPo setups and high-performance ESCs
Protection and Reliability
- Waterproof: Yes – sealed anodized aluminum case protects internal components from moisture and debris
- Case Material: All-black anodized aluminum – provides heat dissipation and rugged durability
- Bearings: Dual output shaft bearings – ensures smooth rotation and long-term reliability
Connectivity and Wiring
- Connector Type: Universal – compatible with standard receiver ports
- Wire Harness: Removable – allows for custom lead lengths and simplified maintenance
Application
- Primary Use: Surface – ideal for 1/8 scale RC trucks, crawlers, racers, and scalers
- Servo Size Category: Standard – designed for high-torque, high-speed surface applications
What’s in the Box
- 1 × Competition High Torque Servo 25T (Model No: P-SPMSS6485)
What You Require / What You Will Need
- Compatible receiver and HV-capable power system – required for full performance operation
