Vortex 120BZB-45 CAT5 Aluminum Rear Sprocket Black 45T 520 Pitch

The Vortex 120BZB-45 is a CAT5 lightweight aluminum rear sprocket featuring a 45-tooth count and 520 pitch, finished in a striking black anodize with contrasting silver machined accents. Designed for the 120 bolt-pattern carrier, this sprocket is a direct-fit replacement engineered to Vortex's exacting race-proven standards.

Key Features:

• CAT5 Aluminum Construction — Specially formulated alloy per Vortex specifications for an optimal strength-to-weight ratio
• 100% CNC Manufactured in the USA — Precision machined for consistent quality and fit
• Black Anodized Finish with Machined Accents — Corrosion-resistant finish with contrasting silver highlights for a premium look
• Vortex Patented Tooth Design — Unique saber-tooth groove geometry increases sprocket longevity and promotes smooth chain engagement
• Reduced Rotating Mass — Lightweight design minimizes unsprung weight, helping transfer more power to the rear wheel
• 45 Teeth / 520 Pitch — Bolt pattern: 120 carrier

Vortex rear sprockets are a trusted choice for street riders and club racers alike. The 120BZB-45 delivers race-quality performance and durability in an OEM-compatible package.