Vortex 316KV4-43 V4 Aluminum Rear Sprocket 43-Tooth

The Vortex 316KV4-43 is a 43-tooth aluminum rear sprocket built on Vortex's all-new V4 design — engineered for maximum performance with a 10–15% weight reduction over the iconic CAT5 design without sacrificing structural integrity. The V4 achieves this through an optimized web pattern with machined faces on both sides, delivering less rotating mass for improved throttle response and sharper acceleration.

Manufactured 100% in the USA from 7075 T6 billet aluminum, every sprocket is CNC-machined to the tightest tolerances for unrivaled precision and consistency. A clear anodized finish is applied prior to cutting, giving the sprocket its signature two-tone machined appearance while protecting against oxidation and corrosion.

Key Features:

• V4 Design — 10–15% lighter than the CAT5 with no sacrifice in strength
• 7075 T6 billet aluminum construction for maximum strength-to-weight ratio
• 100% CNC manufactured in the USA to tight tolerances
• Unique Vortex patented tooth design for extended sprocket longevity
• Clear anodized finish applied pre-cut for corrosion resistance and the iconic two-tone look
• 43 teeth for precise gear ratio tuning
• Designed for road racing, motocross, flat track, and high-performance street use

Vortex has been manufacturing race-proven drivetrain components since 1995, with direct feedback from top professional race teams worldwide. The 316KV4-43 is the ideal upgrade for riders seeking to reduce rotational mass and sharpen their bike's throttle response and directional changes.