Samix Traxxas TRX-4 Brass Portal Cover & Scale Brake Rotor Set

Low Price: $46.99
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The Samix Traxxas TRX-4 Brass Portal Cover & Scale Brake Rotor Set is a precision machined portal cover that adds 55 grams of unsprung weight to the front or rear 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 steering knuckles (SAMTRX4-4412 - not included) and c-hubs (SAMTRX4-4014 - not included) you have the ultimate brass upgrade package that will dramatically improve the performance of your TRX-4.


  • Brass portal knuckle cover adds 55g a pair
  • Improve climbing performance and stability with lower CG
  • Machined from high quality brass material
  • Black finish to help avoid oxidation
  • Includes SAMIX 36mm scale brake rotor & caliper for improved scale looks
  • More rigid and increased durability
  • Direct fit on TRX-4 front & rear std knuckle and SAMIX alum. or brass option knuckle 

NOTE: The brake rotor is suitable for the standard TRX-4 wheel, and will clear any wheel with greater than 36mm inner diameter but may require wider hubs. 

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