3/4" Viper Boxstock 1-Disc Clutch - 6-Spring Big Pin Design

Equip your kart for Boxstock class racing with this precision-engineered 3/4" Viper 6-Spring Clutch (1-Disc). Designed without a driver, this Big Pin Boxstock clutch delivers reliable performance straight out of the box. It features our innovative FCDC-BPL lever for smooth operation and enhanced control.

• One weight bolt pre-installed in the outer position for immediate setup
• Six additional weight bolts and nuts included for easy tuning and customization
• Standard SMCFD8HP disc ensures consistent friction and engagement
• Gold .085" Viper springs preset at .430" for optimal spring tension
• Lever support and drum finished in striking blue for durability and style

This clutch is built for racers seeking dependable power transfer in competitive Boxstock environments. The 6-spring configuration provides progressive engagement, reducing shock loads on your drivetrain while maximizing acceleration. The included hardware allows quick adjustments to match track conditions or engine characteristics, helping you dial in the perfect shift point.

Whether you're prepping for club races or intense practice sessions, this Viper clutch stands out with its robust construction and thoughtful details. The blue anodized components resist wear, and the big pin design ensures secure operation under high RPMs.

FAQ

Does this clutch come with a driver?
No, it ships without a driver as specified for Boxstock class use.

What springs are used?
Gold .085" Viper springs, preset at .430" for reliable performance.

Are weight bolts included?
Yes, one installed in the outer position plus six additional bolts and nuts.

What disc is standard?
The SMCFD8HP disc is included as standard.

What color is the lever support and drum?
Both are blue.