Vortex 314ZB-51 520 Aluminum Rear Sprocket 51-Tooth Black

The Vortex 314ZB-51 is a 51-tooth, black-anodized aluminum rear sprocket designed for 520 pitch chain applications. Built to the exacting standards Vortex Racing is known for, this sprocket is 100% CNC machined in the USA from a specially formulated aluminum alloy developed to Vortex's proprietary specifications.

Key Features:

• 51-Tooth / 520 Pitch — engineered for precise fitment and optimal power transfer
• Black anodized finish — hard-coat anodizing resists corrosion and extends surface life
• 100% CNC manufactured in the USA — tight tolerances ensure concentricity and durability
• Patented tooth design — Vortex's unique tooth profile increases sprocket longevity and reduces wear
• Lightweight aluminum construction — reduces rotating mass for improved throttle response and acceleration
• Specially formulated alloy — per Vortex's own material specifications for strength-to-weight performance

Vortex Racing rear sprockets are the choice of professional racers and serious street riders alike. The reduced rotating mass of an aluminum sprocket compared to OEM steel units translates directly to quicker acceleration and a more responsive powerband. The black hard-coat anodized finish provides added durability over standard silver anodizing, making the 314ZB-51 an excellent upgrade for both track and street use.