Servo Arm, 1.25" (31.75mm) x 3mm Futaba 25T Aluminum, Red (Secraft V1)
Servo Arm, 1.25" (31.75mm) x 3mm Futaba 25T Aluminum, Red (Secraft V1)
Secraft

Secraft Servo Arm 1.25" (31.75mm) V1 M3 - Futaba 25T (Red)

In stock
SKU: SE-SA-167
(2)
$4.50

Secraft Servo Arm 1.25" (31.75mm) V1 M3 – Futaba 25T (Red)

Upgrade your RC aircraft with the precision and durability of the Secraft V1 Aluminum Servo Arm. CNC machined from aircraft-grade 6061-T6 anodized aluminum, this lightweight servo arm delivers exceptional strength, rigidity, and precise control compared to traditional plastic servo horns.

The 1.25" (31.75mm) length provides an excellent balance of control authority and servo torque, making it ideal for giant scale aircraft, IMAC competition, 3D aerobatic airplanes, sport models, and turbine jets. Its rigid aluminum construction minimizes flex, providing more accurate and repeatable control response.

🚀 Target Applications:

  • Giant Scale, IMAC, and aggressive 3D Aerobatic aircraft
  • High-performance turbine jets and precision scale model setups
  • Control linkages requiring balanced aerodynamic throw and torque delivery at a 31.75mm radius
⚠ Spline & Linkage Sizing Note: Cut with an industry-standard Futaba 25T spline configuration and a heavy-duty 3mm (M3) threaded linkage hole (horn screw is not included). Using a servo arm longer than recommended can drastically increase servo load and reduce available torque. Always verify full control movement and proper centering before flight.

Why Choose a Secraft Aluminum Servo Arm?

One of the greatest benefits of an aluminum servo arm is the strength, rigidity, and precision it provides. Unlike molded plastic servo horns that can flex under heavy loads, the CNC-machined 6061-T6 aluminum construction maintains accurate linkage geometry for improved servo centering and more consistent control. Whether you're flying a giant scale aerobatic airplane, turbine jet, or precision sport aircraft, Secraft servo arms deliver the reliability and confidence serious RC pilots demand.

Key Features

  • 6061-T6 Aluminum Core: CNC machine-milled from top-grade aircraft aluminum alloy to eliminate the sloppy tracking flex typical of stock nylon servo horns.
  • Torque-Balanced 31.75mm Geometry: The 1.25-inch profiling delivers an exceptional sweet spot between massive surface deflection throw and servo holding power.
  • Universal 25T Spline Track: Engineered for a perfect, play-free mechanical slide-fit over standard 25-tooth output splines across multiple servo brands.
  • Featherweight Structural Build: Trims rotating inertia down to an absolute minimum on the output shaft while scaling in at only 2.1 grams.
  • Corrosion-Proof Shell: Shipped with a brilliant, highly durable red anodized finish that shields raw alloy surfaces against fuel and moisture residues.
  • Remover Tool Compatible: This exact V1 profile is custom-milled to drop seamlessly inside the full-address Secraft Servo Arm Remover Tool for completely damage-free extraction loops.

⚙️ Verified 25T Servo Spline Compatibility:

Guaranteed drop-in, zero-slop mechanical fitment across standard output shafts from major manufacturers:

  • Futaba (All 25T Splines)
  • Savox (All 25T Splines)
  • MKS (All 25T Splines)
  • KingMax (All 25T Splines)
View Technical Specifications
Brand / Version: Secraft / V1
Center-to-Hole Length: 1.25" (31.75mm)
Output Spline Geometry: 25-Tooth (25T) Futaba Pattern
Material Core Metallurgy: CNC-Machined 6061-T6 Aircraft Aluminum
Linkage Screw Sizing: 3mm / M3 Thread Size (Not Included)
Anodized Color Casing: Vibrant Red Finish
Retail Pack Quantity: 1 Anodized Servo Arm per package
Physical Arm Weight: 2.1 grams (Ultra-Low Mass Footprint)

📦 Package Includes:

  • 1 x Secraft 1.25" (31.75mm) V1 Aluminum 25T Servo Arm (Red)

💡 Modeler’s Tips & Installation Guide

When hooking up your linkages, try to mount the pushrod's ball link underneath the aluminum servo arm face whenever possible to keep twisting force leverage on the servo bearing tower down to a minimum. Keep all connecting control rods adjusted clean and free of play, and use a quality thread-locking compound on all metal-to-metal connections. To safely replace arms during regular maintenance intervals without damaging the internal gears of expensive digital brushless servos, always pull the arm straight up using the full-address absolute path Secraft Servo Arm Remover Tool.

The Gator-RC Advantage: We source a complete selection of matching high-quality hardware parts so you can stock your workspace from one reliable point. In stock and ready to ship out of our domestic warehouse.