RC servo arms are critical components that transmit the rotational force of your servo motor to control surfaces or other moving parts. The quality and material of these arms directly impact the precision, responsiveness, and durability of your RC model's steering and control systems. Selecting the appropriate servo arm ensures optimal performance and longevity for your vehicle.
Looking for the best RC Servo Arms?
Discover now our comparison of the best RC Servo Arms. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best RC Servo Arms are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the RC Servo Arms in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.
- PARAMETER - head hole inner diameter:3mm, please refer to each style size from the description.
- FEATURE - 25 tooth spline,1 set with 4 style steering arm to adjust.
- for - Futaba.
- MATERIAL - plastic.
- PACKAGE CONTENT - 1 set x Servo Arm.
- Hard aluminum construction for precision and durability.
- Adjustable type servo arm,includes two steel bolts to secure the split-clamp onto the servo output.
- For Vehicle Type: for buggy, rc car, rc truck, rc truggy
- Replace the stock parts directly, easy to install
- Package: 5x 25t Aluminum Servo Arms(Red)
- The aluminum servo arms 25t compatible with Futaba Hitec Savox Power HD Xcore 25T Servo Motors ,And it fit for RC Crawler Airplane Plane Car Boat
- The 25t servo arms made of aluminum alloy material,hard aluminum construction for precision and durability.
- 5 sizes to chosen from. Distance from hole center to hole center (Longest)：1inch/1.25inch/1.5inch/1.75inch/2inch (Optional).
- 25 Tooth Spline with M3 Threads;A great replacement part for your rc car airplane boat. Color:Red/Black(Optional)
- Pack of 3Piece 25T Servo Horn Arm.Color:Red.Easy and convenient to install and remove.
- Designed for use in aircraft, car, boat, and helicopter models
- Unlike conventional servo arms, they are made of long fiber composites for added strength
- Longer versions have increased throw allowing for greater movement in controls
- Distance from hole center to hole center:15mm, 20mm, 25mm, 30mm; Size: 37mm (Total length); Thread: M2.5; Package Quantity: 5pcs
- The servo horn is made of aluminum alloy, CNC machining makes it precise in size and stable in performance.
- A great replacement part for your rc model cars.
- Compatible with Futaba Savox Power Servos and so on.
- Fits for 1/8 1/10 RC car truck and other RC models boat FPV.
- Product name: 25T aluminum servo horn M3 threads metal steering arm.
- Dimension: 35x15x6mm (Hole centers at 20 and 24mm from the servo output.); Package quantity: 5pcs
- Adjustable type servo arm, includes two steel bolts to secure the split-clamp onto the servo output.
- For Vehicle Type: for Buggy, Car, Truck, Truggy; Hard aluminum construction for precision and durability. Better than most of the plastic material.
- Fits mostly standard servo motors. Compatible with Futaba Savox Xcore HSP HD Power TowerPro MG servo mostly 25T Standard Servo Motor.
- PARAMETER - head hole inner diameter:3mm, please refer to each style size from the description.
- FEATURE - 23 tooth spline,1 set with 4 style steering arm to adjust.
- for - JR.
- MATERIAL - plastic.
- PACKAGE CONTENT - 1 set x Servo Arm.
- 25T Spline & M3 threads, the 25t servo horn compatible with Futaba Savox Xcore HSP HD Power TowerPro MG servo MOSTLY 25T standard servo motor
- Adjustable type servo arm,includes two steel bolts to secure the split-clamp onto the servo output.
- Hard aluminum construction for precision and durability.
- For Vehicle Type: for buggy, rc car, rc truck, rc truggy
- The metal 25t servo arms are better than most of the plastic material;Pack of 5 in black color.
- The rc airplane servo arms made of aluminum alloy,Exquisite workmanship, compact structure with high rigidity and durability
- Thread Spline,easy and convenient to install.The 25t servo horn long also fit for 1/10 RC Model Car,check the size before buying..
- Extra long servo horns:Both Machined good with thick alloy and strong. They have 3 mounting holes and all threads are tapped good.
- The 25t long servo arm Compatible with Futaba Savox Xcore HL HSP HD power Go tech Rc Servos designed for RC Airplanes RC Plane Helicopter Aircraft.
- Pack of 2Piece 25T Servo Horn Arm.Color:Red.Easy and convenient to install and remove.
- Package includes 2PCS 25T servo arm.CNC machining makes it precise in size and stable in performance.
- Compatible with mostly standard servo motors,for example, compatible with Futaba HSP Power HD Axial Savox Xcore MG995 MG996R MG946R and So on.Compatible with Traxxas Axial Tamiya HPI HSP Wltoys Axial SCX01 rc car truck.
- Distance from hole center to hole center：12mm, 16mm, 20mm
- Size:28x10x7.5mm
- Weight:1.7g/PCS
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Last update on 2026-04-18 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best RC Servo Arms
Material Matters
- Plastic: Often found on budget-friendly models or as stock parts, plastic servo horns are lightweight and inexpensive. However, they can be prone to stripping or breaking under high stress or impacts.
- Aluminum: A popular upgrade, aluminum servo arms offer significantly increased strength and rigidity. They are less likely to bend or strip, providing more precise control, especially in demanding applications.
- Carbon Fiber: For ultimate strength-to-weight ratio, carbon fiber is the top choice. These arms are extremely stiff and lightweight, offering superior precision and durability, though they can be more expensive.
Size and Spline Count
- The length of the servo arm influences the leverage and travel range of your control surfaces. Longer arms provide more travel but require more torque from the servo, while shorter arms offer less travel but are more direct.
- Crucially, ensure the spline count (the number of teeth where the arm connects to the servo output shaft) matches your servo. Common counts include 23T (Futaba), 25T (Savox, Traxxas), and 24T (Hitec). Using the wrong spline count will prevent proper installation.
Type of Arm
- Single Arm: A simple, direct arm often used for basic steering.
- Dual Arm (or 'H' arm): Provides two points of attachment, often used for steering linkages on cars or for connecting to multiple points on aircraft control surfaces.
- Disc/Plate Arm: A circular or plate-like arm with multiple mounting holes, offering flexibility in attachment points for various applications.