Vortex 825A-59 Aluminum Rear Sprocket 59-Tooth 520 Pitch

The Vortex 825A-59 is a precision-engineered aluminum rear sprocket designed specifically for aftermarket racing wheels. This 59-tooth sprocket is manufactured from aerospace-grade 7075-T6 aluminum alloy, providing exceptional strength while minimizing rotational mass for improved acceleration and handling performance.

Key Features:

• CNC machined from lightweight 7075 aluminum for optimal strength-to-weight ratio
• Designed for 520 pitch chains
• Engineered specifically for Marvic and Galespeed aftermarket wheel applications
• 59-tooth configuration for precise gear ratio tuning
• Unique tooth profile design increases sprocket longevity and chain engagement
• 6-bolt mounting pattern with 100mm bolt circle diameter

Technical Specifications:

• Bolt Circle: 100mm
• Bolt Holes: 6
• Bolt Hole Diameter: 10.5mm
• Hub Diameter: 80mm
• Chain Pitch: 520
• Number of Teeth: 59

Vortex sprockets are trusted by professional racing teams and riders worldwide for their superior craftsmanship, precise tolerances, and race-proven durability. Available in multiple finish options to match your build aesthetic while maintaining peak performance characteristics.