Vortex 435CK-47 F5 Rear Sprocket 47-Tooth 525-Pitch Black Aluminum

The Vortex 435CK-47 is a high-performance F5 series rear sprocket engineered for serious motorcycle racing and performance street riding. Featuring a 47-tooth, 525-pitch configuration with a jet black PTFE hard-coat finish, this sprocket delivers a measurable performance advantage over heavy OEM steel units.

Manufactured in the USA from 7075-T6 aerospace-grade aluminum, this sprocket is first hard anodized with a jet black dye, then coated with Vortex's proprietary F5 PTFE (polytetrafluoroethylene) treatment for exceptional lubricity, wear resistance, and corrosion protection. The result is a sprocket that stays cleaner, lasts longer, and sheds rotating mass for improved acceleration response.

Key Features:

• 525 pitch — 47-tooth rear sprocket
• Lightweight F5 aluminum racing sprocket construction
• 100% CNC manufactured in the USA to the tightest tolerances
• Specially formulated 7075-T6 alloy per Vortex specifications
• PTFE black hard-coat finish increases wear resistance and lubricity
• Vortex patented unique tooth design increases sprocket longevity
• Reduces rotating mass compared to OEM steel sprockets for improved acceleration
• Hard anodized with jet black dye for a clean, race-ready appearance

Vortex Racing is a U.S.-based manufacturer owned and operated by motorcycle racers, trusted by professional race teams worldwide across Road Racing, Supercross, Motocross, and Flat Track disciplines. The 435CK-47 is the benchmark for lightweight rear sprocket performance in the 525 chain class.