Vortex 840AZGV4-42 Aluminum Rear Sprocket 42T Gold Anodized

The Vortex 840AZGV4-42 is a 42-tooth aluminum rear sprocket from Vortex's VTX performance sprocket line, designed as a direct-fit upgrade for compatible motorcycles. Machined from high-grade aluminum alloy, this sprocket delivers significant weight savings over OEM steel units without sacrificing durability under hard use.

Key Features:

• 42-tooth rear sprocket for precise final drive gearing
• Lightweight aluminum construction — significantly reduces unsprung and rotating mass compared to stock steel sprockets
• Gold anodized finish (AZGV4 series) provides corrosion resistance and an aggressive, race-inspired appearance
• CNC-machined from high-strength aluminum billet for tight tolerances and consistent fit
• Compatible with 420/428-pitch chain (840 series designation)
• Precision-drilled bolt pattern for direct OEM replacement fitment
• Part of Vortex's VTX sprocket lineup, trusted by racers and performance street riders

Vortex sprockets are manufactured to strict quality standards and are a popular choice for riders looking to fine-tune their bike's acceleration, top speed, or overall gearing ratio. The aluminum construction makes this sprocket ideal for track use and performance-oriented street riding where reducing rotational weight translates to real-world performance gains.