Samix Traxxas TRX-4 Brass Steering Knuckle

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Samix Traxxas TRX-4 Brass Steering Knuckle
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Price: $65.99

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The Samix Traxxas TRX-4 Brass Steering Knuckle is a precision machined steering knuckle option that adds 102 grams of unsprung weight to the front of your TRX-4, for improved forward weight bias and performance. Unlike other brass parts, these feature a stealthy black finish, with chamfered edges that give the parts an unmatched look that offers a touch of bling to your scaler. 

Plus, when combined with the Samix brass c-hubs (SAMTRX4-4014 - not included) and portal covers (SAMTRX4-4413C2 - not included) you have the ultimate brass upgrade package that will dramatically improve the performance of your TRX-4


  • Brass knuckle adds 51g per side
  • Better center or gravity and forward weight bias for climbing
  • Improved durability and rigidity over the factory parts
  • Made of high quality brass and etched with L and R for ease of installation
  • Compatible with Traxxas parts
  • Black coating to help prevent corrosion

This product was added to our catalog on November 16, 2017

Verified Owner
Friday, Sep 21 2018 (about 3 years ago)
Samix Traxxas TRX-4 Brass Steering Knuckle
Fit and finish is perfect. I have all the Samix brass upgrades for the TRX-4 and they are amazing. With A-Main getting them to me in 2 days made it even better!
Verified Owner
Tuesday, May 17 2022 (1 week ago)
Samix Traxxas TRX-4 Brass Steering Knuckle
Great fit and finish, fit perfectly, built very well, good weight to product, look good as well. AMain hobbies has the best customer service in the business.
Wednesday, Dec 8 2021 (6 months ago)
Samix Traxxas TRX-4 Brass Steering Knuckle
Fits Trx4 Sport perfect. Using Treal brass outer portal housings and this screwed into it without issues and sits flush. After a few runs I've noticed a boost in performance. Only 4 stars because of price, wish they were cheaper but in the end it's a worthy upgrade