Vortex 150ZK-51 Silver 51-Tooth Aluminum Rear Sprocket

The Vortex 150ZK-51 is a 51-tooth silver aluminum rear sprocket engineered for motorcyclists who demand precision performance and reduced drivetrain weight. Built to Vortex Racing's exacting standards, this sprocket is 100% CNC machined in the USA from a specially formulated aluminum alloy, ensuring precise concentricity and consistent fitment every time.

Key Features:

• 51-Tooth Rear Sprocket — silver anodized aluminum finish
• 100% CNC Machined — manufactured in the USA to the tightest tolerances
• Specially Formulated Aluminum Alloy — per Vortex specifications for strength and longevity
• Patented Tooth Design — Vortex's unique tooth profile increases sprocket longevity and reduces chain wear
• Lightening Holes — reduce rotating mass for quicker throttle response and improved acceleration
• Vortex ZK Hub Pattern — application-specific bolt pattern for precise OEM-style fitment

Vortex Racing is a U.S.-based manufacturer with a long-standing reputation for producing top-quality motorcycle racing components used in Motocross, Supercross, Road Racing, Flat Track, and Minibike competition. Each sprocket is race-proven with direct feedback from professional race teams worldwide. The 150ZK-51 rear sprocket is an ideal upgrade or direct replacement for riders looking to optimize gearing for more low-end torque and faster acceleration.