Vortex 170ZBV4-43 V4 Aluminum Rear Sprocket 43-Tooth

The Vortex 170ZBV4-43 is a 43-tooth aluminum rear sprocket built around Vortex's newest V4 design — an evolution of their legendary CAT5 platform that delivers a 10–15% reduction in weight without sacrificing structural integrity. CNC-machined 100% in the USA from a specially formulated aluminum alloy to Vortex's own specifications, this sprocket is engineered for riders who demand race-proven performance and precision.

Key Features:

• V4 Design: Vortex's latest sprocket pattern, featuring machined faces on both sides and an optimized structural layout for maximum weight reduction
• 43-Tooth Rear Sprocket: Offers tunable gearing for improved low-end torque and acceleration response
• 100% CNC Manufactured in the USA to extremely tight tolerances for precise fit and consistent performance
• Specially Formulated Aluminum Alloy per Vortex's own material specifications — lightweight yet durable
• Silver Anodized Finish: Clear protective coating applied before cutting, producing the iconic two-tone machined look while guarding against oxidation and corrosion
• Patented Tooth Design: Vortex's unique tooth geometry increases sprocket longevity and reduces wear
• Grooves between teeth help clear debris and keep harmful contaminants away from the chain interface

Aluminum sprockets are the preferred choice for road racing, motocross, flat track, and drag racing applications where rotational weight savings translate directly into throttle response and rear-wheel power. For best results, keep the chain properly cleaned and tensioned every 300–400 miles.