Vortex 405ZK-33 CAT5 Aluminum Rear Sprocket 33T 420 Pitch Black

The Vortex 405ZK-33 CAT5 aluminum rear sprocket delivers lightweight performance and durability for small displacement motorcycles and pit bikes. This 33-tooth sprocket is designed for 420 pitch chain applications and features a precision CNC-machined construction from aerospace-grade 7075 T6 aluminum with a hard-anodized black finish for superior wear resistance.

Key Features:

• Constructed from premium 7075 T6 aluminum for exceptional strength-to-weight ratio
• 33-tooth count provides balanced gearing for mixed terrain riding
• 420 pitch chain compatibility
• Hard-anodized black finish reduces friction and extends service life
• Precision CNC machining ensures perfect fitment and reduced drivetrain wear
• Vortex patented tooth design increases sprocket longevity
• Reduced rotating mass improves throttle response and acceleration

The Vortex CAT5 series represents high-performance sprocket technology engineered for riders who demand reliability and precision. The lightweight aluminum construction reduces unsprung weight while maintaining the strength needed for aggressive riding conditions, making it an ideal upgrade for both recreational and competitive applications.