Barnett Scorpion Clutch For Harley Big Twin 1990-1997

Barnett Scorpion: Unleashing Evolution Power for 2026

The Barnett Scorpion Clutch for 1990-1997 Harley-Davidson Big Twin models represents the 2026 pinnacle of drivetrain engineering for the Evolution era. While the 80-inch Evo is legendary for its reliability, the factory clutch assembly was never intended to handle the aggressive torque curves of modern 2026 performance upgrades. Barnett addresses this by discarding the stock diaphragm spring and cast hub in favor of a CNC-machined billet aluminum pressure plate and hub. This system utilizes a series of six heavy-duty coil springs, which provide a much more linear and consistent pressure across the entire friction surface. This engineering shift eliminates the “slipping” and “fading” commonly associated with high-output 2026 builds, providing the secure, industrial-strength utility required for aggressive street riding or heavy touring.

Customizable Engagement and Thermal Stability

What sets the Barnett Scorpion apart in the 2026 marketplace is its incredible range of tunability. Every Scorpion kit comes equipped with three different sets of coil springs, allowing the rider to mix and match to find the perfect balance between holding power and lever effort. This makes it the ideal choice for a 2026 custom build—you can have a light lever for around-town cruising or a rock-solid lock-up for drag strip launches. The friction plates are made from Barnett’s proprietary Carbon Fiber material, which is designed to operate in a wet primary environment while offering superior thermal resilience. This prevents the plates from warping or glazing under the extreme heat of 2026 summer riding, ensuring the high-output 2026 presence and crisp shifting that Evolution enthusiasts demand. It is the definitive synchronization of old-school muscle and modern friction science.

Expert Installation & Performance Advice

As specialists in Evolution drivetrain architecture, we recommend the Scorpion for any engine over 80 horsepower. Pro Tip: To achieve a “perfect” lever feel in 2026, start with the medium (gold) springs and adjust as needed based on your engine’s torque output. Installation Note: You must pre-soak the friction plates in primary oil for at least 20 minutes before assembly to prevent glazing during the first 2026 heat cycle. Maintenance Note: Use a high-quality primary fluid designed for performance clutches; avoid friction modifiers that can cause the plates to “swell.” Safety Note: Because this kit increases the hub’s precision, ensure your clutch basket is free of notches or grooves before installation; a worn basket can cause “clutch drag,” making it difficult to find neutral during your 2026 travels.

The Professional Standard for Evolution Drivetrain Reliability

Choosing the Barnett Scorpion Clutch means investing in unmatched mechanical stability and a refined power delivery. It offers a unique combination of modern billet technology and a robust design that honors the performance legacy of the Harley-Davidson brand. For the rider who wants a high-output 2026 presence and a flawless engineering finish, the Barnett Scorpion is the unmatched leader. Lock in the power, eliminate the slip, and ride the distance.

Features

• This clutch features over twice as much friction surface area compared to the stock clutch
• Provides a smooth, positive engagement and release for ease in finding neutral as well as smooth positive shifting
• Steel spacers on the clutch pack ends assure no wear on the aluminum surfaces
• Incorporates 6 heavy duty coil springs instead of the stock diaphragm spring
• Includes extra spring sets to tune the clutch from mild (street) to wild (race) depending on the usage

Product Style	AmericanV-twin Item #	Catalog Number	Store Sku	MFR. Product #	Availability
Barnett Scorpion Clutch For Harley Big Twin 1990-1997	11679	630-110		608-30-10090	In Stock: Ships within 24 hours