Vortex 255BZB-45 45-Tooth Black Rear Sprocket

The Vortex 255BZB-45 is a high-quality 45-tooth rear sprocket engineered for performance motorcycle applications. Manufactured by Vortex Racing, a trusted name in powersports drivetrain components, this sprocket is precision-machined from lightweight 7075-T6 aluminum alloy and features a durable black hard-anodized finish for lasting corrosion resistance and a clean, aggressive appearance.

Key Features:

• 45 Teeth — Optimized tooth count for responsive acceleration and strong mid-range power delivery
• 7075-T6 Aluminum Construction — Lightweight yet extremely strong alloy used in high-stress racing applications
• Black Hard-Anodized Finish — Provides enhanced surface hardness and corrosion protection while maintaining a sleek look
• CNC Precision Machined — Tight tolerances ensure smooth chain engagement and extended sprocket and chain life
• Direct OEM Replacement — Designed as a bolt-on upgrade with no modifications required
• Made in the USA — Vortex sprockets are manufactured domestically to strict quality standards

The Vortex 255BZB-45 rear sprocket is an ideal upgrade for riders seeking improved acceleration response over a stock sprocket. Its lightweight aluminum construction reduces unsprung rotating mass, contributing to quicker throttle response and easier handling. Compatible with standard 520-pitch chain systems, this sprocket pairs perfectly with Vortex front sprockets and chain kits for a complete drivetrain refresh.