Vortex 527KV4-40 VTX Aluminum Rear Sprocket Pitch Sprockets - 530 40-Tooth

The Vortex 527KV4-40 is a 530-pitch, 40-tooth aluminum rear sprocket built to Vortex Racing's exacting performance standards. Precision CNC-machined in the USA from a specially formulated aluminum alloy, this sprocket delivers a significant weight reduction over stock steel units, directly reducing rotating mass for sharper throttle response and improved acceleration.

Key Features:

• 530 Chain Pitch — designed for use with standard 530-pitch motorcycle drive chains
• 40-Tooth rear sprocket — stock-equivalent gearing for balanced street and track performance
• Lightweight aluminum construction — reduces rotating mass compared to OEM steel sprockets for improved acceleration and handling
• Vortex patented tooth design — engineered for optimal chain engagement and extended sprocket longevity
• Anodized finish — corrosion-resistant surface treatment protects the aluminum alloy under demanding riding conditions
• 100% CNC machined in the U.S.A. — tight tolerances ensure concentricity and reliable chain tracking
• Lightening holes — strategically placed cutouts further reduce unsprung and rotating weight

The Vortex 527KV4-40 is a direct-fit upgrade for riders seeking a performance-oriented sprocket with race-proven durability. It is compatible with the 527 bolt pattern, which fits applications including the Suzuki GSX-R1000 (2001–2008) and Hayabusa (2008–2019). Always verify fitment with your specific model before ordering.