Vortex 491ZK-48 CAT5 Black Aluminum Rear Sprocket 48-Tooth

The Vortex 491ZK-48 is a 48-tooth CAT5 black hard-anodized aluminum rear sprocket designed for performance motorcycle applications. CNC-machined from lightweight 7075-T6 aircraft-grade aluminum, this sprocket delivers the precision fitment and durability that racers and performance riders demand.

The CAT5 black hard-anodized finish provides a deep, jet-black appearance while significantly increasing surface hardness for extended wear resistance. Vortex's patented tooth profile and proprietary debris-clearing groove geometry reduce chain wear and extend overall drivetrain life compared to conventional sprocket designs.

Key Features:

• 48-Tooth rear sprocket for increased low-end torque and acceleration
• CNC-machined from 7075-T6 aluminum for a superior strength-to-weight ratio
• CAT5 black hard-anodized finish for corrosion resistance and long-lasting appearance
• Vortex patented tooth design for increased sprocket longevity
• Precision-machined debris-clearing grooves on each tooth to reduce chain wear
• Lightweight construction reduces unsprung rotational mass

The Vortex 491ZK-48 is a direct bolt-on upgrade for compatible motorcycles and is an excellent choice for riders looking to improve off-the-line acceleration and overall drivetrain performance.