RPM Upper Suspension Arm for Traxxas UDR (2)

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RPM Upper Suspension Arm for Traxxas UDR (2)
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Price: $14.49

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RPM Unlimited Desert Racer Upper Suspension Arms guarantee unbreakable performance for the life of your truck. RPM UDR A-arms are tough for a number of reasons but it all starts with some of the best engineering grade nylons in the industry. They then evaluate why the stock parts break and build replacements to solve those problems. For example, customers have reported that the pivot balls tend to rip out of stock A-arms. To fix that issue, RPM added nearly 10% more material surrounding the pivot ball and, coupled with stronger materials, virtually eliminates pivot ball breaks. RPM has also increased the amount of material in both support arms leading to the pivot ball. The extra support material means breakage along any other area of the A-arms will be virtually non-existent.

  • Replaces stock Traxxas TRA8531
  • Sold in pairs
  • Nearly 10% more material surrounding the pivot ball
  • Stronger support arms
  • Identical weight to stock components

This product was added to our catalog on September 10, 2018

Gage Tweedie
Verified Owner
Monday, May 15 2023 (about a year ago)
RPM Upper Suspension Arm for Traxxas UDR (2)
The arms are good, and pretty easy to install.

The arms are so good they actually flex too much I think. I seriously think these arms are causing my front driveshafts to pop out when i hit something wrong. Its better than it breaking, but at the same time ive broken drive cups, and shafts now. Will be trying out a different set of arms, and will update if possible.

Love the RPM company, and they make great things. However it's not working for my use. 5 stars because it's done what it's intended for.