Vortex 825CZB-37 CAT5 Aluminum Rear Sprocket 37-Tooth Black

The Vortex 825CZB-37 is a high-performance rear sprocket constructed from aerospace-grade aluminum, featuring a durable black hard-coat finish for extended service life. This 37-tooth rear sprocket is designed for motorcycles requiring a 520 pitch chain and delivers exceptional strength-to-weight ratio for improved acceleration and reduced rotational mass.

Key Features:

• CAT5 aircraft-grade 7075 T-6 aluminum alloy construction for maximum strength
• 37-tooth configuration for optimized gearing options
• Black hard-coat anodized finish for superior wear resistance and corrosion protection
• Unique tooth design increases sprocket longevity
• CNC machined for precise tolerances and perfect fitment
• Lightweight design reduces unsprung weight for better handling
• 520 pitch compatibility

Vortex sprockets provide optimal power transfer and reduced rotational mass, with chains designed to withstand high tensile loads, ensuring reliability under extreme conditions. The black hard-coat finish not only looks aggressive but significantly extends the life of the sprocket compared to standard silver aluminum versions, making it ideal for both street and track applications.