Vortex 313ZL-55 Aluminum Rear Sprocket 55-Tooth

The Vortex 313ZL-55 is a high-performance 55-tooth aluminum rear sprocket engineered for motorcyclists seeking aggressive low-end acceleration and stunt-oriented gear ratios. Part of Vortex Racing's trusted sprocket lineup, this rear sprocket is manufactured to exacting tolerances and is a direct bolt-on replacement for compatible applications.

Key Features:

• 55-Tooth Rear Sprocket — a popular oversized tooth count for increased bottom-end torque and acceleration
• Aerospace-Grade Aluminum Construction — lightweight design reduces unsprung and rotational mass for improved handling and throttle response
• Silver Finish — Vortex aluminum sprockets in 55-tooth and above feature a durable clear-coat silver finish
• 313ZL Bolt Pattern — precision-machined to match specific OEM hub configurations for a secure, rattle-free fit
• CNC Machined — manufactured with tight tolerances for smooth chain engagement and extended wear life
• Compatible with Matching Chain Pitch — must be paired with a front sprocket and chain of the same pitch for proper drivetrain function

Vortex Racing sprockets are a favorite among street, track, and stunt riders who demand reliable performance and precise gearing control. The 55-tooth count delivers a noticeably shorter final drive ratio compared to stock, maximizing low-end pull and wheelie-friendly power delivery.