Vortex 232AZK-40 CAT5 Black Aluminum 520 Rear Sprocket 40-Tooth

The Vortex 232AZK-40 is a CAT5 lightweight aluminum rear sprocket featuring a 520 chain pitch, 40 teeth, and a black anodized finish. Designed as a high-performance upgrade over heavy OEM steel sprockets, this sprocket is engineered for riders who demand precision, durability, and weight savings.

Key Features:

• Lightweight CAT5 aluminum construction — significantly reduces rotating mass compared to OEM steel sprockets for improved acceleration and handling response
• 100% CNC machined in the USA — manufactured to precise tolerances for a concentric, consistent fit
• Specially formulated aluminum alloy per Vortex specifications for optimal strength-to-weight ratio
• Black anodized finish with contrasting silver machine-cut highlights for a premium appearance and corrosion resistance
• Vortex patented tooth design — unique saber-tooth profile increases sprocket longevity and promotes smooth chain engagement
• 520 chain pitch — compatible with standard 520-pitch drive chains
• 40-tooth rear sprocket — suitable for stock gearing replacement or custom ratio tuning

The Vortex 232AZK-40 is an ideal choice for street riders and track enthusiasts looking to replace worn OEM sprockets or fine-tune gear ratios for improved low-end torque or top-end speed. Pair with a quality 520-pitch chain for a complete drivetrain upgrade.