Vortex 313ZB-37 Black Aluminum 420 Rear Sprocket 37-Tooth

The Vortex 313ZB-37 is a 37-tooth aluminum rear sprocket designed for 420-pitch chain applications. Built to Vortex's exacting standards, this sprocket features a hard-coat black anodized finish for corrosion resistance and long-lasting durability in demanding riding conditions.

Key Features:

• 37-Tooth rear sprocket for precise gearing tuning
• 420 chain pitch compatibility
• Black anodized finish for corrosion resistance and aggressive styling
• Lightweight aluminum construction reduces unsprung rotational mass
• Vortex patented tooth profile design for extended sprocket longevity
• Precision CNC-manufactured to tight tolerances for consistent, quiet operation
• Lightening holes optimized to reduce weight while maintaining structural integrity

Vortex sprockets are manufactured using a specially formulated aluminum alloy to deliver optimal strength-to-weight ratio. The 313ZB-37 is an ideal upgrade or direct replacement for worn OEM sprockets, allowing riders to fine-tune their gear ratio for improved acceleration response.