Renthal 478U-525-45P-HA Street Rear Sprocket 45T 525 Pitch Hard-Anodized Aluminum

The Renthal 478U-525-45P-HA is a 45-tooth street rear sprocket built for 525 pitch chain systems. Designed for performance street riding, this sprocket delivers precise power transfer and long-lasting durability in a lightweight aluminum package.

Key Features:

• 45-Tooth Configuration – Optimized gearing ratio for street performance applications
• 525 Pitch Compatibility – Designed for use with standard 525 pitch drive chains
• CNC-Machined Aluminum Construction – High-strength aluminum alloy provides an excellent strength-to-weight ratio
• Hard-Anodized Finish – Proprietary surface hardening process dramatically extends wear life compared to untreated aluminum while resisting corrosion
• Self-Cleaning Mud Grooves – Channeled cutouts prevent debris buildup and maintain consistent chain engagement
• Precision Tooth Profile – Accurately machined tooth geometry ensures smooth, quiet chain operation and even wear
• Reduced Unsprung Weight – Lightweight aluminum design improves handling response compared to steel sprockets

Renthal is a trusted name in motorcycle drivetrain components, and this rear sprocket reflects their commitment to race-proven engineering adapted for street use. The hard-anodized aluminum construction offers a significant service life advantage over standard aluminum sprockets without sacrificing the weight savings that make aluminum the preferred choice for performance riders.