Vortex 438ZK-43 Aluminum Rear Drive Sprocket Sprockets - CAT5 43T 530-Pitch Black

The Vortex 438ZK-43 is a lightweight CAT5 aluminum rear drive sprocket featuring 43 teeth on a 530 pitch chain, finished in a striking black anodize with contrasting silver machine-cut highlights. Designed for performance motorcycle applications including 530 chain conversions, this sprocket delivers the precision and durability expected from one of motorsport's most trusted sprocket manufacturers.

Manufactured entirely in the USA, the 438ZK-43 is CNC-machined from a specially formulated aluminum alloy developed to Vortex's exact specifications. The PTFE black hardcoat finish bonds to the aluminum surface to improve wear resistance and reduce friction, while the patented saber tooth groove design promotes longer sprocket life compared to conventional alternatives. By reducing rotating mass at the rear wheel, this sprocket helps transfer more engine power efficiently to the pavement.

Key Features:

• 43-tooth, 530-pitch rear drive sprocket
• CAT5 lightweight aluminum construction reduces rotating mass
• 100% CNC manufactured in the USA from specially formulated alloy
• PTFE black hardcoat finish for increased wear resistance and reduced friction
• Saber tooth groove design extends sprocket longevity
• Black anodized with contrasting silver machine-cut accents
• Vortex patented sprocket design for superior performance
• Fits 530 chain applications including 530 conversion setups

The Vortex 438ZK-43 is the ZK (black with silver accents) variant in the 438 sprocket family, compatible with 530-pitch chain setups for Yamaha R1, Suzuki GSX-R1000 (2009–2018, 2020), and other 530-conversion applications. It is sold individually.