Vortex 120BZB-39 520 Pitch Rear Sprocket 39 Tooth Black Zinc

The Vortex 120BZB-39 is a high-performance rear sprocket engineered for motorcycles using 520-pitch chain. This sprocket features 39 teeth and is constructed from heat-treated steel for exceptional strength and durability under demanding riding conditions.

Key Features:

• 520 pitch configuration for optimal chain compatibility
• 39-tooth count for balanced acceleration and top speed
• Black zinc finish provides superior corrosion resistance
• Precision-machined teeth ensure smooth power transfer and extended chain life
• Heat-treated steel construction for maximum durability
• CNC-machined for exact tolerances and proper fitment

Vortex sprockets are manufactured to strict quality standards and are a popular choice among sport bike riders and racers. The black zinc coating not only protects against rust and corrosion but also provides an attractive finished appearance. Regular sprocket inspection and replacement is essential for maintaining optimal drivetrain performance and safety.