Vortex 312DZK-42 415-Pitch 42-Tooth Black Aluminum Rear Sprocket

The Vortex 312DZK-42 is a 42-tooth, 415-pitch aluminum rear sprocket finished in a durable black hardcoat anodizing. Engineered for lightweight performance, this sprocket is a direct upgrade over OEM units for compatible mini-bike, pit bike, and small-displacement motorcycle applications running a 415 chain.

Key Features:

• 415 Chain Pitch — designed for use with standard 415-pitch drive chains
• 42 Teeth — optimized tooth count for strong low-end acceleration and power delivery
• Black Hardcoat Anodized Finish — PTFE-based coating bonds to the aluminum surface for enhanced corrosion resistance and reduced friction
• Lightweight Aluminum Construction — reduces rotating mass for improved throttle response, acceleration, and deceleration
• Vortex Patented Tooth Design — unique profile increases sprocket longevity and promotes smooth, consistent chain engagement
• 100% CNC Manufactured in the USA — machined to precise tolerances using a specially formulated aluminum alloy per Vortex specifications

Vortex Racing has been producing top-quality motorcycle drivetrain components for over 15 years, trusted by professional race teams across Motocross, Supercross, Road Racing, and Flat Track disciplines. The 312DZK-42 delivers race-proven reliability in a streetable, durable package.