Vortex 526AZLV4-42 Aluminum Rear Sprocket Chain Sprockets - 42T 525

The Vortex 526AZLV4-42 is a 42-tooth aluminum rear sprocket designed for motorcycles using a 525/526 chain pitch. Engineered by Vortex Racing — a trusted name in performance drivetrain components — this sprocket delivers an ideal combination of lightweight performance and durability for street and track applications.

Key Features:

• 42 Teeth — optimized tooth count for performance gearing adjustments
• 525/526 Chain Pitch Compatibility — fits standard 525-pitch drive chains
• Lightweight Aluminum Construction — significantly reduces unsprung rotational mass compared to steel sprockets
• Hard Anodized Finish — provides corrosion resistance and extended wear life
• Lightening Cuts (AZL Series) — strategically placed cutouts reduce weight without compromising structural integrity
• V4 Carrier Bolt Pattern — direct bolt-on fitment for compatible V4-pattern sprocket carriers
• CNC Machined — precision manufacturing ensures consistent tooth profile and smooth chain engagement

Vortex sprockets are manufactured to tight tolerances and are a popular upgrade for riders looking to fine-tune their motorcycle's acceleration, top speed, or overall power delivery. The aluminum construction makes this an excellent choice for performance and racing applications where weight savings are a priority.