Vortex 316BZB-45 Black Rear Sprocket 45T Aluminum CNC Racing

The Vortex 316BZB-45 is a 45-tooth rear aluminum sprocket finished in a striking black anodized with machined silver accent treatment. Engineered for motorcycle racers and performance street riders, this sprocket is 100% CNC-machined in the USA from lightweight aluminum, reducing rotating mass for improved throttle response and power delivery.

Key Features:

• 45-tooth rear sprocket for refined final drive gearing
• Black anodized finish with machined silver accents for a premium, two-tone appearance
• Lightweight CNC-machined aluminum construction reduces unsprung and rotating weight
• Manufactured in the USA to tight tolerances for precise fitment and consistent performance
• Vortex Racing quality — trusted by professional race teams worldwide since 1995
• Designed as a direct OEM-style replacement or performance upgrade

Vortex Racing has been a benchmark in motorcycle drivetrain components since 1995, with each sprocket built to exacting standards and validated through real-world track use. The 316BZB-45 delivers the performance and aesthetics that both racers and enthusiasts demand.