Vortex 625ZK-48 CAT5 Aluminum Rear Sprocket 48-Tooth Black

The Vortex 625ZK-48 is a 48-tooth CAT5 aluminum rear sprocket finished in Vortex's signature black hard-anodized coating. Engineered for performance-oriented riders, this sprocket delivers an optimal balance of weight savings and durability for street and track use.

Key Features:

• 48-Tooth Rear Sprocket — allows tuning of gear ratio for improved low-end torque and acceleration
• CAT5 Design — Vortex's iconic, patented sprocket pattern CNC-machined for precision fitment and extended longevity
• 7075-T6 Aerospace Aluminum Construction — significantly lighter than OEM steel sprockets to reduce rotating mass and improve throttle response
• Black Hard-Anodized Finish (ZK) — provides a durable, corrosion-resistant surface with a clean, aggressive appearance
• Saber Tooth Groove Design — unique tooth geometry promotes debris clearing and increases sprocket service life
• 100% CNC Manufactured in the USA — machined to tight tolerances using a Vortex-specified alloy for consistent quality
• Two-Tone Machined Appearance — anodizing applied before machining yields the classic black-and-silver contrast Vortex is known for

Upgrading to the Vortex 625ZK-48 rear sprocket is one of the most effective ways to fine-tune your motorcycle's gearing. A higher tooth count on the rear increases the drive ratio, delivering stronger acceleration and improved low-end power delivery. Pair with a matching Vortex front sprocket and chain for a complete drivetrain upgrade.