Overview
Eliminate the rear-axle flex on your Arrma 1/18 Grom with the Hot Racing CNC Aluminum Rear Hub Carrier Set. CNC-machined from aluminum and finished with a clean black anodized coating with chamfered edges, this pair of rear stub axle carriers replaces the stock plastic ARA330807 hubs with a stiffer, more durable rear-suspension upgrade that holds wheel alignment under hard cornering and bashing.
Stock plastic rear hubs flex under load and are prone to cracking on impact — both major drivability killers. The aluminum upgrade fixes both issues in one drop-in part, delivering more consistent rear-end behavior and eliminating one of the most common Grom failure points.
Key Features
- CNC-machined aluminum, anodized black
- Machined chamfered edges
- Pair (left + right) included
- Direct replacement for Arrma ARA330807 plastic rear hubs
- Precision-made for clean bolt-on fit
Performance Benefits
- Eliminates rear-hub flex under cornering load
- Survives crashes that destroy stock plastic hubs
- More consistent rear-suspension geometry
- Long service life — outlasts plastic indefinitely
Usage Notes
Apply removable thread-locker on screws threading into aluminum components. Inspect bearings, axles, and pivot pins during install — replace any worn parts at the same time for a complete rear-end refresh.
Technical Specs
- Material: CNC-machined aluminum
- Finish: Anodized black with chamfered edges
- Function: Rear stub axle carriers
- Replaces: Arrma ARA330807 plastic rear hubs
What's Included
- Two (2) rear aluminum bearing (hub) carriers
Fitment
- Arrma Grom (1/18 scale)
- Replaces stock ARA330807 plastic rear hubs
Summary
The Hot Racing CNC Aluminum Rear Hub Carrier Set is one of the most important durability upgrades for the Arrma Grom rear suspension. Stiffer, stronger, and built to last — bolt them on, drive harder, break less.
