Vortex 120ZK-35 CAT5 520 Aluminum Rear Sprocket 35-Tooth Black

The Vortex 120ZK-35 is a 35-tooth, 520-pitch CAT5 aluminum rear sprocket finished in a black anodized coating. Engineered for serious street and track riders, this sprocket delivers a measurable reduction in drivetrain rotating mass for improved throttle response and acceleration.

Machined from aerospace-grade 7075-T6 aluminum, the 120ZK-35 offers an exceptional strength-to-weight ratio over OEM steel sprockets. The black anodized finish provides corrosion resistance and lasting good looks under hard use.

Key Features:

• 520 Chain Pitch — compatible with standard 520 chain applications
• 35 Tooth Count — optimized for balanced street and track gearing
• 7075-T6 Aerospace Aluminum Construction — maximum strength with minimal weight
• Black Anodized Finish — corrosion-resistant coating for durability and appearance
• 100% CNC Machined in the USA — precision-manufactured for concentric fit and smooth power delivery
• Optimized Tooth Profile — reduces chain drag and extends both sprocket and chain service life

The Vortex 120ZK-35 is a direct bolt-on upgrade that replaces the OEM rear sprocket on compatible motorcycles. For best results and even wear, replace the front sprocket and chain simultaneously.