Vortex 840CZOV4-42 Aluminum Rear Sprocket 42-Tooth Silver

The Vortex 840CZOV4-42 is a lightweight 42-tooth aluminum rear sprocket engineered for serious motorcycle racing and performance street applications. CNC-machined 100% in the USA, this sprocket is built to the tightest tolerances using a specially formulated aluminum alloy developed to Vortex's own specifications, delivering an optimal balance of strength and reduced rotating mass.

The silver anodized finish provides corrosion resistance while keeping the sprocket looking sharp. Vortex's patented tooth geometry is uniquely designed to extend sprocket longevity and promote smooth, consistent chain engagement under demanding race conditions.

Key Features:

• 42-Tooth rear sprocket for tunable gearing performance
• 100% CNC manufactured in the USA to tight tolerances
• Specially formulated aluminum alloy per Vortex specifications
• Silver anodized finish for corrosion resistance
• Patented tooth design for increased longevity and smooth chain engagement
• Reduced rotating mass improves acceleration, deceleration, and directional response
• Trusted by professional race teams worldwide

Whether you're optimizing gearing for the track or upgrading worn OEM hardware, the Vortex 840CZOV4-42 delivers race-proven durability and performance in a lightweight aluminum package.