Vortex 314-40 Silver 40-Tooth 428-Pitch Aluminum Rear Sprocket

The Vortex 314-40 is a silver anodized, 40-tooth, 428-pitch aluminum rear sprocket engineered for motorcycle racing and high-performance street riding. Manufactured 100% in the USA, this sprocket is built to the tightest tolerances using a specially formulated aluminum alloy per Vortex's own specifications, delivering the precision and reliability demanded by professional race teams.

Key Features:

• 40-Tooth / 428-Pitch — Direct replacement rear sprocket for compatible 428-chain applications
• Lightweight aluminum construction — Reduces rotating mass for improved acceleration, deceleration, and directional response
• 100% CNC manufactured in the USA — Machined to race-grade tolerances
• Specially formulated alloy — Proprietary Vortex aluminum specification for optimal strength-to-weight ratio
• Silver anodized finish — Corrosion-resistant anodizing protects the sprocket surface
• Unique Vortex patented tooth design — Increases sprocket longevity and chain engagement

Vortex Racing has been a trusted name in U.S.-based motorsports for over 15 years, supplying components across Motocross, Supercross, Road Racing, Flat Track, and Minibike disciplines. The 314-40 is a direct OEM-style replacement sprocket that allows riders to maintain stock gearing or fine-tune their drive ratio for specific track or riding conditions.