EBC CSK39 Heavy Duty Clutch Spring - Kit

The EBC CSK39 clutch spring kit provides an OEM upgrade solution for motorcycles experiencing clutch fade or slip from worn factory springs. These premium replacement springs are engineered to be 10% stiffer than stock specifications, restoring proper clutch engagement and preventing damage from prolonged heat exposure and normal wear.

Key Features:

• 10% stiffer than OEM springs for improved clutch performance
• Prevents clutch slippage under high-heat conditions
• Smoother, more consistent clutch engagement
• Faster, more precise shifting with reduced effort during speed shifts
• Complete kit includes all necessary springs for installation
• Direct OEM replacement—no modifications required

The increased spring tension delivers noticeably improved clutch feel and response, particularly during aggressive riding or track use. While the clutch lever will require slightly more effort to pull (which may be fatiguing in stop-and-go traffic), the trade-off is smoother takeoffs, cleaner shifts, and elimination of clutch slip. Ideal for riders seeking to restore or enhance clutch performance on high-mileage machines or those modified for increased power.