Vortex 525A-51 525-Pitch Aluminum Rear Sprocket 51 Tooth

The Vortex 525A-51 is a 525-pitch aluminum rear sprocket with 51 teeth, engineered for street and performance motorcycle applications. Precision-manufactured by Vortex Racing, this sprocket delivers the same quality trusted by professional race teams worldwide.

Key Features:

• 525 Chain Pitch — compatible with 525-pitch drive chains
• 51-Tooth rear sprocket for tuned gear ratio performance
• Aluminum construction — lightweight design reduces rotating mass for improved acceleration response
• Lightening holes further reduce weight without sacrificing structural integrity
• CNC machined to precise specifications for exact concentricity and consistent fitment
• Unique saber-tooth groove design — Vortex patented tooth profile increases sprocket longevity
• Available in multiple anodized color options or PTFE black hardcoat finish for added durability

Vortex Racing sprockets are 100% CNC machined and held to the tightest tolerances in the industry. The aluminum alloy construction sheds significant weight compared to OEM steel sprockets, making the 525A-51 an ideal upgrade for riders looking to optimize gear ratios and reduce drivetrain rotating mass. Pair with a matching 525-pitch chain for a complete drivetrain refresh.