HPI Racing 40 Tooth Spool Set – Optional Locked Diff Upgrade for RS4 Sport 3
$41.39
Sale price
$41.39
Regular price
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HPI Racing 40 Tooth Spool Set – Optional Locked Diff Upgrade for RS4 Sport 3
$41.39
Sale price
$41.39
Regular price
Overview
The HPI Racing 40 Tooth Spool Set is an optional drivetrain upgrade for the HPI RS4 Sport 3, replacing the standard differential with a locked spool for maximum drive efficiency. A spool delivers 100% power transfer to both wheels — ideal for drift, drag, and certain racing applications where consistent traction is more important than diff-style cornering behavior.
Precision-machined for smooth meshing and rugged construction, this upgrade is a popular choice for drift builders and racers wanting more direct power delivery.
Key Features
- Genuine HPI Racing optional upgrade
- Locked spool design (no differential action)
- 40-tooth gear count
- Precision-machined construction
- Direct fit for RS4 Sport 3
Performance Benefits
- Maximum power transfer to both drive wheels
- Predictable handling for drift applications
- Eliminates inside-wheel slip during launches
- Increased drive efficiency
Usage Notes
- Spools are best for drift, drag, and stadium racing
- Reduces cornering ability vs. standard differential
- Recommended for advanced drivers
- Use with appropriate tire compounds
Technical Specs
- Manufacturer: HPI Racing
- Part Number: 114436
- Tooth Count: 40T
- Type: Locked Spool
- Application: Optional Upgrade
Fitment
- HPI RS4 Sport 3
- HPI RS4 Sport 3 Hoonicorn
- HPI RS4 Sport 3 BMW M3 E30
- RS4 Sport 3 variants and licensed editions
What's Included
- 1x 40 Tooth Spool Set (RS4 Sport 3 Opt)
Summary
Lock in maximum drive efficiency with the HPI Racing 40T Spool Set for your RS4 Sport 3. The perfect choice for drifters and drag racers.
Details
This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.
Shipping & Returns
We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.
We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.
