Vortex 454K-40 Black 525 Rear Sprocket F5 Aluminum CNC Racing

The Vortex 454K-40 is a high-performance rear drive sprocket engineered for serious motorcycle racing applications. Featuring a 525 chain pitch and a 40-tooth count, this sprocket is manufactured entirely in the USA using 100% CNC machining processes for exceptional precision and consistency.

Constructed from a lightweight F5 aluminum alloy formulated exclusively to Vortex's proprietary specifications, the 454K-40 delivers an optimal balance of strength and weight reduction over OEM steel sprockets. The sprocket receives a PTFE black hardcoat finish — polytetrafluoroethylene (Teflon) — that dramatically increases surface hardness and wear resistance, extending the service life of the sprocket well beyond standard aluminum alternatives.

Key Features:

• 525 chain pitch with 40-tooth configuration
• Lightweight F5 aluminum alloy construction — proprietary Vortex material specification
• 100% CNC manufactured in the USA for precise tolerances
• PTFE black hardcoat (polytetrafluoroethylene / Teflon) for superior wear resistance and longevity
• Patented Vortex tooth profile — unique design reduces chain wear and extends sprocket life
• Significantly lighter than OEM steel sprockets, reducing unsprung and rotating mass

The Vortex patented sprocket tooth geometry is engineered to promote smooth chain engagement and disengagement, reducing stress on both the chain and sprocket under hard acceleration and braking. Whether used on the track or the street, the 454K-40 delivers race-proven durability in a lightweight package.