GPM Racing Aluminium 23T Servo Horn - 4pcs Set for Traxxas 1/10 TRX4 (TRX4023T)
We are the importer of record — the price you see is the price you pay.
Handled by us in the UK under the Consumer Rights Act — no sending it overseas.
What our customers say
A selection of recent five-star reviews, as written.
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★★★★★
Ordered flishrc cobra. Communication was great. Ordered larger batteries but they were the wrong size. Olly shipped the right batteries and gave a refund for the difference I paid. Couldn't ask for more. Thanks for the help with the order.
Robert, 22 September 2026
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★★★★★
Very helpful when the vehicle I wanted wasn't in stock. Very fast deliver too.
Anna Abbott, 17 September 2026
-
★★★★★
Excellent service speedy delivery and good customer service
GLYN, 10 September 2026
-
★★★★★
Great product and service. I enjoy buying from these guys. Thanks to radio-controllled.co.uk.
Paul Jordan, 3 September 2026
-
★★★★★
Dealt with customer services over an order I accidently placed, they were prompt and dealt with it will, completely refunded within a small window of time, thanks!
Oliver Galustian, 23 July 2026
-
★★★★★
Really good online rc store with some great products and sales on. The owner is very knowledgeable as well.
Simon, 19 July 2026
-
★★★★★
Product delivered promptly and in excellent condition 👍had very helpful and prompt responses from Olly to all my questions, I will definitely be using them again 👍
Mark Clucas, 30 January 2026
-
★★★★★
The customer service and advice were first class!
Steve Avery, 9 September 2025
-
★★★★★
The seller knew I was after one and very kindly informed me when they came back into stock so now have a Flywing Bell 206. Fantastic bit of kit. Well worth the wait.
Pete Goddard, 15 April 2025
-
★★★★★
Great service, car arrived fast and really well packaged. Also, I had a little problem....(which turned out to be me doing it wrong) but someone replied the same evening! Will definitely be buying from them again.
Graham Rousseau, 10 February 2025
Key Specs
- Scale
- 1/10
- Weight
- 12 g
About this product
Precision 23T Servo Horn for TRX4 Steering Systems
This four-piece CNC-machined servo horn is engineered for scale TRX4 Trail Crawler steering applications. It replaces standard plastic arms with a high-strength aluminium interface to reduce wear and maintain consistent steering geometry under torque and side loads.
Manufactured from 6061 T6 aluminium, the straight-arm geometry minimises flex relative to moulded components while retaining a compact form factor for full suspension articulation. The dual-position mounting holes permit incremental tie rod adjustments to refine steering ratio and toe settings without modifying rod ends or additional hardware.
Installation requires aligning the horn to the servo output spline, securing with the supplied stainless steel fasteners, and selecting the alternate hole for linkage tuning. The component is intended for technical crawling and precision steering upgrades on TRX4 and compatible chassis where durability and repeatable steering are priorities.
Packing includes
- Stainless Steel Round Head Screws 3×14 – 1pcs
- Stainless Steel Flat Head Screws 3×8 – 1pcs
- Stainless Steel Cap Head Screws 2.5×6 – 1pcs
What tolerances should I expect from the machined horn?
The part is CNC machined to tight hobby-grade tolerances suitable for precise steering linkage alignment. Check spline engagement and mating surfaces for correct seating during installation.
How does material choice affect longevity?
6061 T6 aluminium offers superior wear resistance and stiffness over plastic arms, reducing deformation under repeated loads and improving long-term steering consistency.
Any recommended installation notes for performance?
Ensure full spline seating, use the supplied stainless screws with appropriate torque, and verify steering endpoints after fitting. Minor linkage adjustments via the alternate hole can be used to optimise steering geometry. Write Product Review Please sign in your account before you can write any review.
Made to order: GPM Racing parts are shipped to us from GPM’s factory, so please allow around 14 days for dispatch.
What our customers say
A selection of recent five-star reviews, as written.
-
★★★★★
Ordered flishrc cobra. Communication was great. Ordered larger batteries but they were the wrong size. Olly shipped the right batteries and gave a refund for the difference I paid. Couldn't ask for more. Thanks for the help with the order.
Robert, 22 September 2026
-
★★★★★
Very helpful when the vehicle I wanted wasn't in stock. Very fast deliver too.
Anna Abbott, 17 September 2026
-
★★★★★
Excellent service speedy delivery and good customer service
GLYN, 10 September 2026
-
★★★★★
Great product and service. I enjoy buying from these guys. Thanks to radio-controllled.co.uk.
Paul Jordan, 3 September 2026
-
★★★★★
Dealt with customer services over an order I accidently placed, they were prompt and dealt with it will, completely refunded within a small window of time, thanks!
Oliver Galustian, 23 July 2026
-
★★★★★
Really good online rc store with some great products and sales on. The owner is very knowledgeable as well.
Simon, 19 July 2026
-
★★★★★
Product delivered promptly and in excellent condition 👍had very helpful and prompt responses from Olly to all my questions, I will definitely be using them again 👍
Mark Clucas, 30 January 2026
-
★★★★★
The customer service and advice were first class!
Steve Avery, 9 September 2025
-
★★★★★
The seller knew I was after one and very kindly informed me when they came back into stock so now have a Flywing Bell 206. Fantastic bit of kit. Well worth the wait.
Pete Goddard, 15 April 2025
-
★★★★★
Great service, car arrived fast and really well packaged. Also, I had a little problem....(which turned out to be me doing it wrong) but someone replied the same evening! Will definitely be buying from them again.
Graham Rousseau, 10 February 2025
