Vortex 253AZK-37 Aluminum Rear Sprocket 37-Tooth 520 Pitch

The Vortex 253AZK-37 is a high-performance aluminum rear sprocket designed for 520 pitch chain applications. This 37-tooth sprocket features Vortex's CAT5 hard anodized finish, providing exceptional durability and wear resistance for demanding riding conditions.

Key Features:

• 37-tooth configuration for optimized gearing performance
• Constructed from specially formulated aluminum alloy per Vortex specifications
• CAT5 hard anodized finish for maximum longevity and corrosion resistance
• Vortex patented tooth design increases sprocket life
• Lightweight construction reduces unsprung weight
• CNC-machined for precision fitment and balance
• 520 pitch compatible

Vortex sprockets are engineered with a unique tooth profile that distributes load more evenly across the chain, reducing wear on both the sprocket and chain. The lightweight aluminum construction offers significant weight savings over steel sprockets while maintaining strength and durability for racing and street applications.