Vortex 312D-51 Aluminum Rear Sprocket 51-Tooth

The Vortex 312D-51 is a high-performance 51-tooth aluminum rear sprocket designed as a direct replacement or performance upgrade for compatible motorcycles. Engineered by Vortex Racing — a trusted name in powersports drivetrain components — this sprocket delivers the durability and precision that competitive and street riders demand.

Key Features:

• 51 teeth — ideal for increased low-end torque and acceleration
• Lightweight aircraft-grade aluminum construction reduces unsprung weight for improved handling
• Precision CNC-machined for exact tooth profile and consistent chain engagement
• Hard-anodized finish resists corrosion and extends service life
• Direct bolt-on fitment — no modifications required
• Compatible with standard replacement motorcycle chains

Vortex rear sprockets are manufactured to strict tolerances, ensuring smooth power transfer and extended chain and sprocket life. The 312D-51 is a popular choice for riders looking to fine-tune their gearing for track days, motocross, or street performance applications.