Vortex 313ZL-50 420 Aluminum Rear Sprocket 50-Tooth Black

The Vortex 313ZL-50 is a 420-pitch, 50-tooth aluminum rear sprocket finished in a black hardcoat anodized treatment for enhanced durability and corrosion resistance. Engineered for small-displacement motorcycles and mini-bikes that use a 420 chain, this sprocket delivers a significant weight reduction over stock steel units, helping reduce rotating mass for improved acceleration and throttle response.

Key Features:

• 420 Chain Pitch — designed for 420-series drive chains
• 50 Teeth — optimized tooth count for gearing adjustment
• CNC-machined aluminum construction — lightweight, high-strength alloy per Vortex specifications
• Black hardcoat anodized finish — resists corrosion and wear for extended service life
• Lightening holes — strategically placed to reduce rotating mass without sacrificing strength
• Unique Vortex tooth design — promotes smooth chain engagement and increased sprocket longevity

Vortex sprockets are trusted by professional racing teams worldwide and are manufactured to the tightest tolerances for consistent, reliable performance. The 313ZL-50 is an ideal upgrade for riders looking to fine-tune their gearing or replace a worn OEM sprocket with a lighter, more durable alternative.