Vortex 525AZK-51 525-Pitch 51-Tooth Aluminum Rear Sprocket

The Vortex 525AZK-51 is a 51-tooth, 525-pitch aluminum rear sprocket engineered for street and performance motorcycle applications. Precision-machined from high-grade 7075 T6 billet aluminum, this sprocket delivers an ideal balance of lightweight performance and long-term durability for demanding riders.

Key Features:

• 525 Chain Pitch — designed for use with 525-series drive chains
• 51 Teeth — provides increased rear-wheel torque and improved acceleration
• 7075 T6 Billet Aluminum Construction — high-strength alloy machined to precise tolerances for concentricity and durability
• Lightening Holes — strategically placed to reduce rotating mass without sacrificing structural integrity
• Patented Saber Tooth Groove Design — Vortex's unique tooth profile increases sprocket longevity and chain engagement
• Anodized Finish — resists corrosion and wear for extended service life
• 100% CNC machined for consistent, race-quality fitment

Vortex Racing is a U.S.-based manufacturer with over 15 years of experience producing top-quality motorcycle racing components for Road Racing, Motocross, Supercross, Flat Track, and Minibike applications. Every component is built to the tightest tolerances and validated through direct feedback from professional race teams worldwide.