Vortex 840CZOV4-43 VTX Aluminum Rear Sprocket 43T

The Vortex 840CZOV4-43 is a 43-tooth CNC-machined aluminum rear sprocket from Vortex Racing, a leading American manufacturer of high-performance motorcycle drivetrain components. Engineered for sport and street riders who demand precision and reduced unsprung weight, this sprocket is manufactured from lightweight 7075-T6 or 6061-T6 aluminum alloy and finished with a durable hard anodize coating for corrosion resistance and long service life.

Key Features:

• 43 Teeth — bolt-on rear sprocket for fine-tuned gearing adjustments
• CNC-Machined Aluminum Construction — significantly lighter than steel sprockets, reducing rotational mass for improved throttle response and acceleration
• Hard Anodized Finish — resists corrosion, wear, and heat for extended service life
• VTX Carrier Design — precision offset carrier (OV4) for proper chain alignment and fitment
• 520 Chain Pitch Compatible — designed for use with standard 520-series motorcycle drive chains
• Precision Tooth Profile — optimized tooth geometry for smooth chain engagement and reduced wear on both sprocket and chain

Vortex sprockets are manufactured in the USA and are a popular upgrade for riders looking to optimize acceleration, top speed, or overall gearing ratio. The 840CZOV4-43 is a direct bolt-on replacement that maintains OEM mounting dimensions while delivering a noticeable weight savings over stock steel sprockets.