Vortex 251ZK-49 Cat5 Rear Aluminum Sprocket Black 49-Tooth

The Vortex 251ZK-49 is a 49-tooth Cat5 rear aluminum sprocket finished in black, engineered for riders seeking lightweight performance without sacrificing durability. Vortex Racing is a well-established name in the motorsports and racing community, known for producing precision-machined sprockets that meet the demands of both track and street riding.

Constructed from high-quality aircraft-grade aluminum, this sprocket significantly reduces unsprung rotational weight compared to steel alternatives, contributing to improved throttle response and overall drivetrain efficiency. The black anodized finish provides corrosion resistance and a clean, aggressive look.

Key Features:

• 49-tooth rear sprocket for tuned final drive gearing
• Cat5 series design for specific fitment applications
• Lightweight aluminum construction reduces unsprung weight
• Black anodized finish for corrosion resistance and aesthetics
• Precision CNC-machined for accurate tooth profile and consistent chain engagement
• Manufactured by Vortex Racing, a trusted name in competitive motorsports

The Vortex Cat5 rear sprocket is an ideal upgrade for riders looking to fine-tune their gearing for acceleration or top-speed optimization. The 49-tooth count offers a slightly taller gearing option depending on the front sprocket pairing, making it a popular choice for both street performance and track day use.