Vortex 610B-39 Black Steel Rear Sprocket 39-Tooth 630 Pitch

The Vortex 610B-39 is a 39-tooth, 630-pitch black steel rear sprocket engineered for high-displacement motorcycles that demand durable, precision-manufactured drivetrain components. Built to Vortex's exacting standards, this sprocket delivers reliable power transfer and long service life in both street and performance riding applications.

Key Features:

• 39-Tooth / 630 Pitch — designed for use with 630-pitch drive chains on larger displacement motorcycles
• Carbon steel alloy construction — manufactured to Vortex's proprietary material specifications for maximum strength and wear resistance
• Electro-plated satin black finish — corrosion-resistant coating provides a clean, durable appearance
• Patented Vortex tooth profile — unique tooth geometry promotes smooth chain engagement and extended sprocket life
• Precise CNC machining — tight tolerances ensure proper concentricity and consistent chain tracking
• Induction hardened — surface hardening reduces wear under demanding riding conditions

Vortex Racing components are track-tested by professional race teams worldwide and trusted by riders who demand OEM-quality fit with aftermarket performance. The 610B-39 is a direct-fit replacement or performance upgrade for applications requiring a 630-pitch, 39-tooth rear sprocket.