Vortex 337-63 520-Pitch Aluminum Rear Sprocket 63-Tooth Silver

The Vortex 337-63 is a 63-tooth, 520-pitch aluminum rear sprocket finished in silver anodize. Engineered for performance street and off-road motorcycle applications, this sprocket is CNC machined from a specially formulated aluminum alloy to Vortex's exacting specifications, delivering a lightweight yet durable replacement or performance upgrade for your drivetrain.

Key Features:

• 63 teeth — 520-pitch rear sprocket for fine-tuned gear ratio customization
• Lightweight aluminum construction — specially formulated alloy per Vortex specifications for reduced rotating mass
• 100% CNC manufactured — ensures precise concentricity and consistent tooth spacing for smooth, quiet chain engagement
• Vortex patented saber tooth groove design — unique tooth profile increases sprocket longevity and reduces chain wear
• Silver anodized finish — corrosion-resistant coating provides a clean, lasting appearance
• Lightening holes — strategically placed cutouts reduce overall weight without sacrificing structural integrity

The Vortex 337-63 rear sprocket is a direct bolt-on performance component compatible with 520-chain applications. Whether tuning for low-end torque, off-road trail riding, or track use, this sprocket delivers reliable power transfer and extended service life. MPN: 337-63. Also referenced as VTX337-63.