Vortex CK5144 Chain and Sprocket Kit Conversion with Hardcoat Aluminum Rear Sprocket - 520

The Vortex CK5144 is a complete chain and sprocket kit engineered for performance riders seeking improved acceleration and long-lasting drivetrain reliability. This ready-to-install kit requires no chain cutting, making installation straightforward and hassle-free.

At the heart of this kit is a Vortex SV3 Series 520RV3 chain, manufactured in Japan to meet the highest quality specifications in the industry. The SV3 chain features a dual pocket sealing system that delivers up to 7 times longer wear life compared to standard O-ring chains, keeping you on the road longer between service intervals.

Kit Specifications:

• Chain Type: 520RV3
• Chain Length: 108 links
• Front Sprocket: 15 teeth (one tooth down from OE)
• Rear Sprocket: 44 teeth (hardcoat aluminum, stock size)
• OE Gearing: 16/44
• Vortex Kit Gearing: 15/44
• Conversion: 520 format

Key Features:

• Ready to install — no chain cutting required
• SV3 dual pocket sealing system for extended chain life
• Hardcoat aluminum rear sprocket for lightweight durability
• Japanese-manufactured chain for premium quality and consistency
• 520 conversion reduces unsprung rotating mass for improved performance
• Lower front sprocket gearing for enhanced acceleration

The gearing change from a 16-tooth to a 15-tooth front sprocket effectively shortens the overall gear ratio, delivering quicker acceleration out of corners. Riders should compare OE gearing to the Vortex kit gearing to understand the ratio difference before installation. For those seeking even more aggressive gearing, Vortex GFRA (Go Fast) 520 conversion kits with further-reduced ratios are also available separately.