Vortex 317ZKV4-45 VTX Aluminum Rear Sprocket 45T

The Vortex 317ZKV4-45 is a 45-tooth VTX series aluminum rear sprocket designed as a direct-fit replacement or performance upgrade for compatible motorcycles. Engineered by Vortex Racing — one of the most trusted names in motorcycle drivetrain components — this sprocket delivers an excellent balance of light weight and durability for both street and track applications.

Key Features:

• 45-Tooth configuration for optimized final drive gearing
• VTX series hard-anodized 7075-T6 aluminum construction for maximum strength-to-weight ratio
• Hard-anodized finish provides excellent corrosion and wear resistance
• CNC-machined to precise tolerances for smooth, reliable chain engagement
• Lightweight design reduces unsprung rotational mass for improved performance
• Direct OEM-replacement fitment — no modifications required
• Compatible with standard O-ring, X-ring, and Z-ring chains

The Vortex VTX aluminum rear sprocket is a popular choice among riders looking to reduce drivetrain weight without sacrificing longevity. Whether tuning gearing ratios for track use or replacing a worn OEM sprocket, the 317ZKV4-45 delivers race-proven quality and precise fitment.