Vortex 525A-42 Aluminum Rear Sprocket 525 Chain Pitch 42 Tooth

The Vortex 525A-42 is a lightweight aluminum rear sprocket designed for motorcycles running a 525 pitch chain. Engineered by Vortex Racing, a trusted name in powersports drivetrain components, this sprocket delivers a winning combination of reduced unsprung weight and reliable power transfer.

Key Features:

• Chain Pitch: 525 — compatible with standard 525 drive chains
• Tooth Count: 42 teeth — suitable for a range of street and sport motorcycle applications
• Material: Lightweight aluminum construction for reduced rotating mass
• Precision Machined: CNC-machined for exact tooth profile and consistent fitment
• Hard Anodized: Anodized finish for enhanced wear resistance and corrosion protection

Vortex sprockets are a popular OEM-replacement and performance upgrade choice for sport bike and street motorcycle riders seeking to optimize acceleration, gearing ratio, or reduce drivetrain weight. The 525A-42 is a direct bolt-on replacement designed to meet or exceed OEM specifications.