RPM
RPM Upper Suspension Arm for Traxxas UDR (2)
Part # RPM813825.0(1)
Where to buy
$14.49
Prices are as last seen at the store; stock is not tracked.
About this part
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.
Features:
Features:
- Replaces stock Traxxas TRA8531
- Sold in pairs
- Nearly 10% more material surrounding the pivot ball
- Stronger support arms
- Identical weight to stock components
Reviews5.0 · 1 review
Gage TweedieVerified ownerMay 15, 2023on 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. Little late on the update. 12/7/24. These arms aren't the driveshaft popping out issue. It was my front steering knuckles. I switched to the vivaton ones, and seeming to have good luck.
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