RPM Arrma Kraton 8S Rear Suspension Arms (2)

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RPM Arrma Kraton 8S Rear Suspension Arms (2)
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Mud Guards
$8.95 - RPM Arrma Kraton 8S Rear Arm Mud Guards (addon details...)
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RPM Arrma Kraton 8S Rear Suspension Arms are a heavy duty upgrade for the Arrma Kraton 8S & Outcast 8S models. These 26 lbs, high-flying, dirt shredding, jump-killing machines are true monsters. If your A-arms aren’t up to the abuse this massive rig can dish out, look no further than RPM. These replacement rear A-arms are designed with the backyard basher in mind and can handle some serious abuse and come back for more.

RPM rear A-arms have a triple beam style construction designed to spread impact energy across all three beams. Each beam’s cross-section is a whopping 5/8” (15.8mm) tall x 3/8” (9.5mm) wide. These massive beams reduce unwanted flex during normal suspension movement, yet allow impact-absorption during those not-so-perfect landings and crashes. RPM also moved the inner cross brace away from the chassis, eliminating the droop stop entirely. While this may seem counter-intuitive, the RPM test truck chassis was bent at the droop stops, clearly illustrating that extreme impacts were too much for the chassis plate to handle. After all, there’s nothing worse than a bent chassis.

Made in the USA from RPM's trademark blend of ultra durable materials, you can’t go wrong with RPM!

Tech Notes: RPM Rear A-arms for the ARRMA Kraton 8S are sold as a pair. RPM A-arms replace stock ARRMA ARA330590.

  • Sold in pairs
  • Replaces stock ARRMA ARA330590
  • Optional Mud Guards also available (RPM80642)

This product was added to our catalog on October 20, 2020

Verified Owner
Thursday, Jan 6 2022 (4 months ago)
RPM Arrma Kraton 8S Rear Suspension Arms (2)
I have used rpm arms for years, and never had any real issues. The rpm arms for the kraton 8s do not fit properly. The shock ends do not fit into the arm unless you shave some plastic off the arm. You have to drill out the hole for the sway bar screw, because the hole is to small. Good luck getting the screw back out in the future,because the back side of the screw bottoms out before the threads can grab. A 20 minute job took me 2 hours, because of the fitment issues. Save yourself time and money, and just buy stock arms.