Vortex 610ZK-37 530 Aluminum Rear Sprocket Black 37-Tooth

The Vortex 610ZK-37 is a 37-tooth aluminum rear sprocket designed for motorcycles running a 530-pitch chain. Precision-manufactured from high-grade aluminum and finished with a durable black anodize, this sprocket delivers a lightweight performance upgrade over heavy OEM steel sprockets without sacrificing strength or longevity.

Key Features:

• 37 teeth — allows fine-tuning of final drive ratio for improved acceleration or top-end performance
• 530 chain pitch — compatible with 530-series chains standard on many sport and sport-touring motorcycles
• Black anodized aluminum construction — reduces unsprung rotational mass compared to steel while resisting corrosion and wear
• CNC-machined to precise tolerances — ensures concentric fitment, smooth chain engagement, and reduced drivetrain noise
• Direct bolt-on replacement — designed to match OEM sprocket carrier bolt patterns for straightforward installation

Vortex rear sprockets are a trusted choice among street riders and track-day enthusiasts looking to optimize gear ratios or reduce drivetrain weight. The 610ZK-37 pairs with Vortex front sprockets and 530-pitch chains for a complete drivetrain upgrade.