Vortex 642AZBV4-48 Aluminum Rear Sprocket Anodized Sprockets - 48-Tooth

The Vortex 642AZBV4-48 is a 48-tooth CNC-machined aluminum rear sprocket built for riders who demand race-proven performance on the street or track. Machined from 7075 T6 billet aluminum, this lightweight sprocket reduces rotating mass for improved acceleration, deceleration, and throttle response.

Key Features:

• 7075 T6 billet aluminum construction — lightweight and strong, purpose-built to reduce rotating mass
• 100% CNC manufactured in the USA — precision machined to tight tolerances for consistent fit and function
• Specially formulated alloy per Vortex specifications for optimal strength-to-weight ratio
• Vortex patented tooth design — unique profile engineered to increase sprocket longevity and reduce chain wear
• Anodized finish with contrasting machined accents — corrosion-resistant coating with a distinctive look
• 48 teeth — adds low-end torque and improves acceleration off the line
• Trusted by professional race teams worldwide across Superbike, Supercross, Motocross, and Road Racing disciplines

The Vortex 642AZBV4-48 rear sprocket is a direct-fit performance upgrade that delivers measurable gains in drivetrain efficiency. Whether you're tuning gearing for track days or spirited street riding, this sprocket pairs with standard 520-pitch chains and is manufactured to the same exacting standards used by championship-winning race teams.