Overview
Strengthen the front-end of your Arrma 1/18 Grom Narrow with the Hot Racing 6061-T6 Aluminum Front Upper Suspension Arm Set B. CNC-machined from anodized aluminum, these direct-replacement front upper arms eliminate the flex and breakage common to the stock plastic ARA330839 Suspension Arm Set B upper arms.
Whether you're rebuilding after a crash or proactively upgrading before race day, these aluminum upper arms deliver the rigidity and durability needed to keep your Grom's front-end suspension geometry consistent under hard driving and big landings.
Key Features
- CNC-machined aluminum, black anodized finish
- Direct replacement for upper arms in Arrma ARA330839
- Two front upper aluminum suspension arms included
- Steel pivot balls for smooth, slop-free articulation
- Significantly stronger and more rigid than factory plastic
Performance Benefits
- Eliminates upper-arm flex that affects camber and suspension geometry
- Survives crashes and big landings that snap stock plastic arms
- Cleaner pivot action throughout the full suspension stroke
- More consistent handling lap-to-lap
Usage Notes
Apply removable thread-locker on screws threading into aluminum components. Inspect pivot balls and bushings during installation; replace any worn parts at the same time for a complete front-suspension refresh.
Technical Specs
- Material: CNC-machined aluminum
- Finish: Anodized black
- Pivot Balls: Steel
- Configuration: Front upper arms (left + right)
- Replaces: Plastic front upper arms in Arrma ARA330839 Suspension Arm Set B
What's Included
- Two (2) front upper aluminum suspension arms
- Steel pivot balls
Fitment
- Arrma 1/18 Grom Narrow
- Arrma 1/18 Grom variants using ARA330839 Suspension Arm Set B
Summary
The Hot Racing 6061-T6 Aluminum Front Upper Suspension Arm Set B is the smart, durable replacement for fragile stock plastic upper arms. A clean bolt-on install with major dividends in long-term reliability and front-end suspension consistency.
