Aluminum Front Knuckle Arms for 1/10 AXIAL SCX10 Rock Crawler (2pcs) – Black Upgrade Parts
Aluminum Front Knuckle Arms for 1/10 AXIAL SCX10 Rock Crawler (2pcs) – Black Upgrade Parts
These 2pcs aluminum alloy front knuckle arms from SD Racing Parts are a direct upgrade for 1/10 scale AXIAL SCX10 rock crawlers, including models SCX10, 90021, 90022, 90027, 90028. Weighing just 1.12 ounces per pair, they help reduce unsprung weight for improved handling and durability. The black finish matches most RC chassis and provides a subtle custom look.
What Makes This Knuckle Arm Different?
Most stock knuckle arms are molded plastic, which can flex under load and wear out over time. This aluminum alloy version offers greater rigidity without adding much weight. The set comes with four screws for a straightforward swap. It’s designed for electric-powered buggies, trucks, and crawlers—especially popular with AXIAL SCX10 owners looking to strengthen their front suspension.
Will This Fit My SCX10 Model?
Yes, if you have a 1/10 scale AXIAL SCX10, SCX10 II, or compatible chassis like 90021, 90022, 90027, or 90028. The knuckle arms also fit many other 1/10 buggies, trucks, and rock crawlers that use standard servo arm mounting. Check your vehicle’s steering setup to confirm hole spacing, but most SCX10 variants are direct-fit.
Specs at a Glance
| Material | Aluminum Alloy |
| Color | Black |
| Package Dimensions | 4.17 x 2.56 x 0.79 inches |
| Item Weight | 1.12 ounces (2 pieces + screws) |
| Item Model Number | 43227-3422 |
| Brand | SD Racing Parts |
| Manufacturer | Speedy Racing |
| Vehicle Types | Buggy, Car, Truck, Rock Crawler |
| Scale | 1/10 |
| Included | 2 Knuckle Arms + 4 Screws |
Installation Tips
No special tools required—just remove the old knuckle arms and screw these in place. The aluminum alloy cuts down on slop and flex, making steering feel more precise. Many users report a noticeable improvement in cornering stability on technical rock trails. Since it’s a direct replacement, you can keep your existing bearings and hardware.
Common Questions
Does this kit include everything needed to install?
Yes, you get two aluminum knuckle arms and four screws. You’ll reuse the original bearings and any additional hardware from your truck.
Will these fit 1/10 scale buggies other than SCX10?
They fit many 1/10 buggies, trucks, and rock crawlers that use standard servo arm mounting. If your vehicle is not an AXIAL SCX10, compare the dimensions before purchasing.
What is the weight of each knuckle arm?
The total package (2 arms + screws) weighs 1.12 ounces, so each arm is roughly 0.5 ounces—significantly lighter than stock plastic parts in many cases.
Why choose aluminum over plastic?
Aluminum offers better rigidity and longevity, especially for rock crawling where the front end takes a lot of stress. It resists flex and helps maintain consistent steering geometry.