Vortex 920ZK-41 Aluminum Rear Sprocket 41T Black Anodized

The Vortex 920ZK-41 is a lightweight 41-tooth aluminum rear sprocket designed for motorcycles running a 920-pitch drive chain. Built to Vortex's exacting standards, this sprocket is CNC-machined from a specially formulated aerospace-grade aluminum alloy and features a black anodized finish for corrosion resistance and a distinctive two-tone machined appearance.

Key Features:

• 7075 T6 billet aluminum construction — reduces rotating mass for improved throttle response and acceleration
• Black anodized finish — applied before machining for the iconic two-tone look and corrosion protection
• 100% CNC manufactured in the USA — machined to tight tolerances for precise chain engagement
• Vortex CAT5 patented tooth design — unique tooth profile engineered for increased sprocket longevity
• 41 teeth — direct replacement or gearing upgrade for compatible 920-pitch chain applications
• Lightweight design — reduces rotating mass compared to steel sprockets, aiding in acceleration and deceleration response

Vortex Racing has been manufacturing top-quality motorcycle drivetrain components in the USA for over 20 years, with products trusted by professional race teams worldwide. The 920ZK-41 rear sprocket is an ideal performance upgrade or OEM replacement for riders seeking reduced weight and improved drive efficiency.