Vortex 253ZR-51 Black Aluminum Rear Sprocket 530 Chain 51-Tooth

The Vortex 253ZR-51 is a 51-tooth aluminum rear sprocket for 530-pitch chain applications. Finished in a durable black hard-coat anodize, this sprocket offers an aggressive look while providing a corrosion-resistant surface that extends service life under demanding riding conditions.

Vortex rear sprockets are CNC-machined 100% in the USA from a specially formulated aluminum alloy, delivering a lightweight alternative to steel that reduces rotating mass and improves throttle response. Lightening holes are machined into the body to further minimize unsprung weight without sacrificing structural integrity.

Key Features:

• 51-Tooth, 530 Chain Pitch — bolt-on replacement for stock 530-pitch drivetrain setups
• Black Hard-Coat Anodized Finish — wear-resistant surface for extended sprocket life
• CNC-Machined Aluminum Construction — 100% manufactured in the USA to precise tolerances
• Patented Tooth Design — unique profile engineered to increase sprocket longevity and improve chain engagement
• Lightening Holes — strategically placed cutouts reduce rotating mass for improved acceleration
• Concentric Precision — machined to exact concentricity for smooth, vibration-free power transfer

The Vortex 253ZR-51 is an ideal upgrade for riders looking to fine-tune their gear ratio or replace a worn OEM rear sprocket with a high-performance component trusted by racers and street riders alike.