Vortex 435ZR-50 CAT5 Red 50-Tooth 520-Pitch Aluminum Rear Sprocket

The Vortex 435ZR-50 is a 50-tooth, 520-pitch CAT5 aluminum rear sprocket finished in a vivid red anodize with contrasting silver machine cuts. Designed as a direct OEM replacement or for suitable 520-size chain conversions, this sprocket delivers a significant weight savings over stock steel units, reducing rotating mass for sharper throttle response and improved acceleration.

Key Features:

• Lightweight CAT5 aluminum construction — significantly reduces unsprung rotating mass versus OEM steel
• 100% CNC machined in the USA — precision-manufactured to exact tolerances
• Specially formulated alloy per Vortex specifications for maximum strength and durability
• Patented saber tooth groove design — unique tooth profile increases sprocket longevity
• Cat 5 anodized red finish — color anodizing applied to the body with bright silver highlights on the machined surfaces
• 520 chain pitch — designed for 520-size OEM applications or suitable 520 conversion setups
• 50 teeth — ideal for tuning final drive ratio for added low-end pull and acceleration

Vortex sprockets are engineered for riders who demand race-proven performance and precision. The 435ZR-50 pairs excellent durability with eye-catching style, making it a popular upgrade for sport and road riders looking to optimize their drivetrain.