Vortex 190ZB-40 CAT5 Aluminum Rear Sprocket 40-Tooth Black

The Vortex 190ZB-40 is a 40-tooth CAT5 aluminum rear sprocket engineered for motorcycle racing and high-performance street riding. Machined from 7075-T6 billet aluminum, this sprocket delivers an exceptional strength-to-weight ratio, reducing rotational mass for improved throttle response and acceleration.

Key Features:

• 40-tooth rear sprocket for precise gear ratio tuning
• Constructed from 7075-T6 billet aluminum for lightweight, race-proven durability
• Black anodized finish — PTFE black hardcoat bonds to aluminum for added surface durability and corrosion resistance
• 100% CNC machined to tight tolerances for accurate fitment and concentricity
• Vortex patented saber-tooth groove design promotes chain engagement and extends sprocket life
• Made in the USA by Vortex Racing

Vortex Racing sprockets are a trusted choice among professional racers and enthusiasts competing in Road Racing, Supercross, Motocross, and Flat Track disciplines. The 190ZB-40 is a direct bolt-on upgrade that allows riders to fine-tune gearing for improved low-end torque or higher top-end speed without sacrificing reliability.