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RPM 81485 Blue Front Upper and Lower A-Arms for Arrma Kraton and Outcast 6S

RPM 81485 Blue Front Upper and Lower A-Arms for Arrma Kraton and Outcast 6S

Best price now

$38.98at AmazonObserved at 9:24 PM

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Our take on the RPM 81485 Blue Front Upper and Lower A-Arms for Arrma Kraton and Outcast 6S

RPM 81485 is a set of blue front upper and lower A-arms for the Arrma Kraton 6S and Outcast 6S monster trucks. RPM molds them from a flexible nylon-based plastic that flexes on impact instead of snapping, and trims extra clearance at the outer end so the arms clear more obstacles. The set is a direct bolt-on replacement for the stock front arms. At $38.98 at Amazon as of November 5, 2026, it is the only new price listed, so there is no recent range to compare it against.

Best forKraton 6S and Outcast 6S owners replacing broken front armsBashing and off-road driving where arms take hitsBuyers who want a color accent on the front endDrivers tired of snapping stock plastic arms
Pros
  • Flexible plastic bends on impact rather than cracking
  • Extra clearance at the outer arm reduces snagging
  • Direct fit, no modification needed
  • Sold as a full front set: upper and lower arms
  • Blue color stands out on the truck
Cons
  • Fits Arrma 6S trucks, not the Traxxas Slash some listings name
  • Flexible arms can add some play to camber and toe under load
  • Only one store lists a new price, so comparison shopping is limited
  • No hardware or hinge pins included

RPM 81485 Blue Front Upper and Lower A-Arms for Arrma Kraton and Outcast 6S prices at every store

  • AmazonNew

    Availability unknown

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    $38.98Free shippingObserved at 9:24 PM
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RPM 81485 Blue Front Upper and Lower A-Arms for Arrma Kraton and Outcast 6S price history

Lowest price we've seen: $38.98 on Nov 6 at Amazon. Tracked across 1 store since Nov 6.

What reviewers say

Owners of the Kraton and Outcast 6S generally rate these arms as a durable upgrade over stock, with the flex and added clearance getting most of the credit. Complaints center on fitment confusion and on arms that flex enough to change alignment.

What people mention
  • DurabilityPraisedOwners say the arms flex and spring back where stock arms crack.
  • Ground clearancePraisedThe trimmed outer end is reported to clear ruts and debris better.
  • FitmentMixedThey bolt onto Kraton and Outcast 6S trucks, but some listings' Traxxas Slash compatibility misleads buyers.
  • Flex and alignmentCriticisedA few owners note the arms give enough to shift camber and toe under hard use.
  • InstallationPraisedReported as a direct swap using the stock hinge pins and screws.

Specifications

Accessory Type
Spare part
Part Type
A-Arms
Compatible Brands
Traxxas
Compatible Devices
RC cars
Compatible Models
Slash 1/10 2WD Brushless
Material Type
Plastic
Size
No information

Questions and answers

Do these fit the Arrma Kraton 6S and Outcast 6S?
Yes. RPM lists 81485 as a front upper and lower A-arm set for both trucks, and it installs with the stock pins and screws.
Will they fit a Traxxas Slash?
No. Despite some compatibility listings naming the Slash 1/10 2WD, these arms are made for the Arrma 6S platform.
What is included in the set?
Four arms: front upper and lower for both sides, in blue. Hinge pins and hardware are not included.
Are they stronger than the stock arms?
RPM's flexible plastic is the main selling point. Owners report fewer breakages, though the flex can let alignment shift slightly.
Is $38.98 a good price?
It is the only new price listed as of November 5, 2026, so there is nothing to compare it to. Check used or kit-takeoff arms if you want to spend less.
Do I need to modify the truck to install them?
No. RPM states a direct fit with no model modification.
Where is the RPM 81485 Blue Front Upper and Lower A-Arms for Arrma Kraton and Outcast 6S cheapest?
At Amazon, for $38.98, as of our latest check.

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Length
3.31 in (84 mm)
Weight
1 lb
Width
1.52 in (38.5 mm) (at widest)
Purpose
Tuning, Replacement
Installation
Direct fit (requires no model modification)
Color
Blue
Design Highlights
Increased clearance in outer area of arms
Durability
Resists flexing and breaking
Age Range
Adult