Fastrax Medium Duty Alloy Single Servo Horn - 25T Savox/Futaba
Brand: Fastrax
Part No: FAST311B
In Stock: Usually ships same day
The Fastrax Medium Duty Alloy Single Servo Horn (FAST311B) is a robust, black anodised, machined aluminium arm designed to reinforce steering or throttle linkages. This 25T version features a single-arm layout with an additional screw clamp for extra strength and a more secure hold on the servo spline.
Key Features
- Black anodised, machined aluminium construction
- Single arm design for clean, direct linkage
- Additional screw clamping for extra strength
- Part of a range available in three spline sizes and in single or double arm variants
What’s Included
- Screw and aluminium countersunk washer
Suggested Compatibility
- 25T output splines from brands such as Savox and Futaba
Secured by Stripe
Beef up your steering or throttle assembly with these new black anodised machined aluminium servo arms.
Available in 3 spline sizes for all servo types, they are available in single or double arm variety and feature additional screw clamping for extra strength. Come with screw and aluminium countersunk washer.
Key Info:
- Brand: Fastrax
- Part No: FAST311B
- Barcode: 5055323947865
- Spline Count: 25T (Futaba/Savox)
Standard Shipping
£3.95 to most of the UK
Express Shipping
£6.95 to most of the UK
Worldwide Shipping
Available at checkout
Reviews
No specific product reviews yet, why not write one?WRITE A REVIEW
Questions & Answers
Sorry I'm afraid that item is not available separately.
I am sorry these are not available as a spare part.
yes that will fit.
No the sh0225 is a micro servo so the spline is a different size.
Yes it'll fit any 25T servo.
We have a variety of delivery options but DPD next day would be with you next working day
Yes that should fit
Approx 30mm overall, or around 25mm to the outer hole. We've just uploaded a quick image showing the dimensions
Yes, that should work well.
No, sorry - it's too large for most micro servos.
ASK A QUESTION
For more in depth queries, please contact us.






Fastrax Medium Duty Alloy Double Servo Horn - 25T Savox/Futaba
Fastrax 3 In 1 Servo Horn - 25T for Futaba/Savox
Power HD 1812MG Waterproof Metal Geared Servo - 18kg - 0.12s
eTronix Low Profile Digital Metal Gear Servo - 8.2Kg/0.11s
Tamiya Lexan Spray Paint - PS-1 White
eTronix Digital Metal Geared Waterproof Servo - 30.3Kg - 0.09S
Tamiya Lexan Spray Paint - PS-5 Black
Hobbywing Quicrun 1060 Brushed SBEC Waterproof 60A ESC - Deans Connector
Savox 1258+ Servo - 12Kg/cm - 0.08 Sec
RadioLink R6F 6-Channel Surface Receiver
Fastrax Pre-Assembled Throttle/Brake Linkage Set Black
Savox SV1272SG+ High Voltage Standard Size Ultra Torque Servo - 30KG - 0.10s
RadioLink RC4GS V3 5 Channel Steerwheel Transmitter With 1 x R6FG-V3 Gyro Receiver and 1 x R6F-V2 Standard Receiver
eTronix Waterproof Metal Gear Servo - 21.8Kg - 0.16s
eTronix 9.3Kg/0.13S Standard Digital Servo Metal Gear