Vortex 604-31 Silver 31-Tooth Steel Rear Sprocket

The Vortex 604-31 is a silver, 31-tooth steel rear sprocket engineered for sport bike and powersports applications. Built to Vortex Racing's exacting standards, this rear sprocket is precision CNC-machined and features Vortex's patented tooth profile design for optimized chain engagement, reduced wear, and extended sprocket life.

Key Features:

• 31-tooth rear sprocket for precise final drive ratio tuning
• High-tensile steel construction — induction-hardened and plated for maximum durability
• Vortex patented tooth design for superior chain hold and reduced drivetrain wear
• Precision CNC machined to the tightest tolerances in the industry
• Silver finish for a clean, classic appearance
• Direct bolt-on replacement — no modifications required

The Vortex 604-31 is an ideal choice for riders looking to fine-tune their motorcycle's gearing for acceleration or top-speed performance. Pairing this sprocket with a matching Vortex front sprocket and drive chain ensures a complete, optimized drivetrain upgrade.