You will not be allowed to compare more than 4 products at a time
View compareHPI Racing Clutch Spring Tuning Set (0.8mm/0.9mm/1.0mm) – Savage XL Tuning Kit
HPI Racing Clutch Spring Tuning Set (0.8mm/0.9mm/1.0mm) – Savage XL Tuning Kit
Hurry! Only left 1 in stock
Sold by ToyTooth — Your trusted kids' toy store.
Returns accepted within 30 days | support@toytooth.com
Shipping Information
Shipping calculated at checkout
Shipping cost and estimated delivery will be shown at checkout based on your location.
- Processing Time:3–5 business days
- Tracking number sent via email once dispatched
Returns & Refund
Returns accepted within 30 days of delivery.
Damaged or Defective Item
Free return shipping + replacement or full refund
Wrong Item Received
Free return shipping + replacement or full refund
Change of Mind
Return shipping at customer's expense · Item must be unused & in original packaging
Safety & Compliance
California Proposition 65 Warning
Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
www.P65Warnings.ca.govGeneral Product Safety Advisory
Always read the product label, instructions, and safety warnings before use. Do not use damaged or modified products. Store products in appropriate conditions as specified by the manufacturer.
Keep all products out of reach of children unless specifically designed for their use.
Product Authenticity & Notice
All products sold by ToyTooth are 100% authentic, sourced directly from trusted toy suppliers and brands. Product colors and dimensions may vary slightly from images due to screen calibration and manufacturing tolerances.
ToyTooth — Fun Toys for Every Kid, Delivered to Your Door.
Share
Couldn't load pickup availability
Guarantee safe and secure checkout
Description
Description
Overview
The HPI Racing Clutch Spring Set for the Savage XL is a complete tuning kit containing replacement standard 0.8mm clutch springs (black) along with two optional sized springs — 0.9mm (silver) and 1.0mm (gold). This set enables you to fine-tune the clutch engagement (biting point) exactly to match your engine's torque characteristics.
Whether you're running a stock Savage XL Octane engine or a tuned aftermarket setup, this spring kit gives you the flexibility to dial in your clutch for optimal performance.
Key Features
- Genuine HPI Racing tuning kit
- Three different spring rates included
- 0.8mm Black (standard)
- 0.9mm Silver (optional firmer)
- 1.0mm Gold (optional firmest)
- Color-coded for easy identification
Performance Benefits
- Fine-tune clutch engagement to engine output
- Match clutch behavior to driving style
- Stiffer springs for high-torque engines
- Improved drivetrain protection
- Predictable launch behavior
Usage Notes
- Designed for the HPI Savage XL clutch system
- Stiffer springs = later/firmer engagement
- Softer springs = earlier engagement
- Match spring rate to engine torque output
- Test drive after each spring change
Technical Specs
- Manufacturer: HPI Racing
- Part Number: 113578
- Spring Sizes: 0.8mm, 0.9mm, 1.0mm
- Color Codes: Black / Silver / Gold
Fitment
- HPI Savage XL Octane
- HPI Savage XL platform variants
- 1/8 scale Savage XL chassis
What's Included
- 2x 0.8mm Black Standard Springs
- 2x 0.9mm Silver Optional Springs
- 2x 1.0mm Gold Optional Springs
Summary
Dial in your Savage XL's clutch performance with this complete HPI Racing Clutch Spring Tuning Set. Three rates, color-coded, and ready to optimize your launches.

