Vortex 610BZK-39 Black Aluminum Rear Sprocket 39T 520 Pitch

The Vortex 610BZK-39 is a precision-machined 39-tooth rear sprocket finished in a sleek black anodized coating. Designed for riders who demand performance-grade drivetrain components, this sprocket is built to Vortex's exacting tolerances for consistent power transfer and long service life.

Key Features:

• 39 Teeth — optimized gearing for a balance of acceleration and top-end performance
• 520 Chain Pitch — compatible with standard 520-series drive chains
• Black Anodized Finish — corrosion-resistant and heat-treated for durability
• Lightweight Aluminum Construction — reduces unsprung weight without sacrificing strength
• CNC Machined — precision manufacturing ensures accurate tooth geometry and smooth chain engagement
• Direct OEM-Style Fitment — bolt-on replacement requiring no modifications

Vortex Racing is a trusted name in the powersports industry, producing sprockets, clip-ons, levers, and other performance components used by racers and street riders worldwide. The 610BZK-39 is an excellent choice for riders looking to upgrade or replace their stock rear sprocket with a high-quality, race-proven alternative.