Overview
Sharpen the front-end of your Arrma Grom B-spec build with the Hot Racing CNC Aluminum Front Knuckle Spindle Set B. CNC-machined from aluminum and finished with a clean black anodized coating, this left/right knuckle pair replaces the worn or broken nylon front knuckles from ARA330841 with race-grade aluminum components built for serious driving.
Aluminum knuckles maintain front-suspension geometry and steering response under high cornering loads, while resisting the cracking and breakage common to plastic stock knuckles in crashes. A direct, easy-install upgrade for any B-spec Grom build.
Key Features
- CNC-machined aluminum, anodized black
- Direct replacement for part of ARA330841 Set B knuckles
- Left and right front knuckles included
- Precision-made for perfect bolt-on fit
- Stronger and more rigid than stock plastic
Performance Benefits
- Sharper steering response and consistent front-end geometry
- Survives crashes that destroy stock nylon knuckles
- More predictable suspension behavior under load
- Long service life — outlasts plastic indefinitely
Usage Notes
Installation requires using removable thread-locker on screws threading into the steering block. Inspect bearings, axles, and pivot pins during install; replace worn parts at the same time.
Technical Specs
- Material: CNC-machined aluminum
- Finish: Anodized black
- Function: Front steering knuckles (Set B spec)
- Replaces: Part of Arrma ARA330841 Set B
What's Included
- One (1) left front knuckle
- One (1) right front knuckle
Fitment
- Arrma Grom (1/18 scale) Set B builds
- Replaces part of ARA330841 stock front knuckles
Summary
The Hot Racing CNC Aluminum Front Knuckle Spindle Set B is a tough, drop-in upgrade for any B-spec Grom build. Stronger, stiffer front-end geometry — bolt it on and drive harder.
