Vortex CK2253 GFRA 520 Conversion Chain and Sprocket Kit with Hardcoat Aluminum Rear Sprocket

The Vortex CK2253 GFRA (Go Fast) 520 Conversion Chain and Sprocket Kit delivers a complete, ready-to-install drivetrain upgrade engineered for performance riders. This kit steps down the front sprocket by one tooth from OE gearing, sharpening throttle response and improving acceleration off the line. No chain cutting is required — everything arrives pre-sized and ready to bolt on.

At the heart of this kit is Vortex's 520RV3 SV3 Series chain, manufactured in Japan to exacting quality standards. The SV3 chain uses a dual pocket sealing system that delivers up to 7 times longer wear life compared to standard O-ring chains, making it an excellent choice for both street and track use.

Gearing Specifications:

• OE Gearing: 16T front / 42T rear
• Vortex Kit Gearing: 15T front / 42T rear (one tooth down in front, stock rear)
• Chain: 520RV3 — 116 links
• Rear Sprocket: F5 Hardcoat anodized aluminum for reduced weight and long-lasting durability

Key Features:

• Complete kit — front sprocket, hardcoat aluminum rear sprocket, and 520 chain included
• No chain cutting required for a straightforward installation
• SV3 dual pocket seal technology for up to 7x the wear life of standard O-ring chains
• Vortex Performance Links chain manufactured in Japan to premium quality specifications
• 520 conversion reduces unsprung rotational mass for improved handling and acceleration
• Hardcoat anodized aluminum rear sprocket resists wear and corrosion

Riders looking to fine-tune their gearing for quicker acceleration will appreciate the precision engineering Vortex brings to every component in this kit. Compare OE gearing to Vortex kit gearing to confirm the gear ratio change suits your riding style and application.