Vortex 313-39 420 Aluminum Rear Sprocket 39-Tooth Silver

The Vortex 313-39 is a 39-tooth aluminum rear sprocket designed for motorcycles using a 420 chain pitch. Built to Vortex Racing's exacting standards, this sprocket delivers a precise drop-in replacement or performance upgrade for compatible small-displacement and off-road motorcycles.

Key Features:

• 39 teeth for optimized gear ratio tuning
• 420 chain pitch compatibility
• Precision-machined from lightweight aluminum for reduced rotational mass
• Silver finish for a clean, classic look
• CNC-machined to tight tolerances for smooth, reliable power transfer
• Designed for direct OEM replacement or performance gearing customization

Vortex Racing sprockets are trusted by professional racers and enthusiasts alike for their superior craftsmanship and consistent performance. The 313-39 is an ideal choice for riders looking to fine-tune acceleration and overall drivetrain response on their motorcycle.