Vortex 635AZR-42 Aluminum Rear Sprocket Hard Anodized Sprockets - 42T

The Vortex 635AZR-42 is a high-performance 42-tooth aluminum rear sprocket engineered for serious street and track riders. Machined from lightweight 7075-T6 aluminum alloy and finished with a durable hard anodized coating, this sprocket delivers an ideal balance of reduced rotating mass and long-lasting wear resistance.

Key Features:

• 42-Tooth Configuration – Optimizes acceleration and throttle response for aggressive riding
• 7075-T6 Aluminum Construction – Significantly lighter than steel alternatives, reducing unsprung weight
• Hard Anodized Finish – Provides excellent corrosion resistance and extended service life
• CNC Machined – Precision manufactured for consistent tooth geometry and smooth chain engagement
• AZR Series Carrier Pattern – Direct OEM-replacement fitment for compatible models using the 635 bolt pattern
• Race-Proven Design – Developed and trusted by Vortex Racing for both street and competition use

The Vortex AZR sprocket series is a popular upgrade for riders looking to fine-tune their bike's gearing without adding unnecessary weight. The hard anodized surface resists wear and corrosion, making it a reliable choice for both track days and daily riding.