Vortex 317KV4-45 Aluminum Rear Sprocket 45T

The Vortex 317KV4-45 is a 45-tooth aluminum rear sprocket engineered for performance street and track riders demanding precision, lightweight construction, and durability. Vortex Racing is a trusted name in the powersports industry, producing CNC-machined sprockets to tight tolerances for reliable power transfer and consistent chain engagement.

Key Features:

• 45-tooth rear sprocket configuration for optimized acceleration and drive ratio tuning
• CNC-machined 7075 aluminum construction for a lightweight, high-strength alternative to steel sprockets
• Hard-anodized finish for corrosion resistance and extended service life
• Precision-cut teeth for smooth, quiet chain engagement and reduced drivetrain wear
• Manufactured to OEM-equivalent or superior tolerances for confident fitment
• Compatible with standard chain pitch for the applicable fitment series

Vortex aluminum rear sprockets are a popular upgrade for riders looking to reduce unsprung weight and fine-tune gearing for specific tracks or riding conditions. The KV4 carrier designation ensures correct bolt pattern and offset for compatible motorcycle applications.