Purple .067" Bully Clutch Spring for Custom Engagement Rates

Unlock tunable performance in your kart's drive system using this .067" purple spring, which sets the engagement threshold to match your engine's power band perfectly.

Why it matters on race day:

• Purple color for rapid selection during frantic pit stops
• Balanced rate supports both low-end torque and high-speed stability
• Reduces shoe flutter, enhancing lining longevity
• Versatile fit in Bully 3/4" and Viper jackshaft models
• Facilitates organized spring kits for varied track profiles

Experienced tuners swear by mixing spring rates like this to adapt to changing weather or tire compounds, shaving precious seconds per lap. With the (SKU: BCSP), maintain a clutter-free toolbox while achieving pro-level clutch response. It's not just a part—it's your secret to consistent podium finishes across diverse racing formats.

Integrate into rebuilds for immediate gains in drivability and speed.