Vortex CK5252 Chain and Sprocket Kit with Hardcoat Aluminum Rear Sprocket - 520

The Vortex CK5252 is a complete, ready-to-install chain and sprocket kit featuring a premium 520RV3 O-ring chain and matched sprocket set. No chain cutting is required — simply install and ride.

The included 520RV3 Series chain is manufactured in Japan to exacting quality standards. Its dual-pocket sealing system delivers up to 7 times longer wear life compared to standard O-ring chains, making it an exceptional upgrade for performance riders who demand durability and reliability.

Kit Specifications:

• Chain: 520RV3 — 116 Links
• Chain Type: O-ring with dual-pocket seal system
• Front Sprocket: 16 Teeth (one tooth down from OE)
• Rear Sprocket: 45 Teeth (hardcoat aluminum)
• OE Gearing: 17/45
• Vortex Kit Gearing: 16/45
• Gearing Change: One tooth down in front, stock rear — optimized for improved acceleration

Key Features:

• Complete kit — chain and both sprockets included, ready to install
• No chain cutting required
• 520RV3 dual-pocket sealing system for extended service life
• Hardcoat aluminum rear sprocket for reduced unsprung weight
• Chain manufactured in Japan to premium quality standards
• Lower front sprocket ratio delivers stronger acceleration compared to stock gearing

The Vortex CK5252 kit uses a 520 conversion format, offering a lower gear ratio versus OE for riders who prioritize quicker acceleration. Compare OE gearing to the Vortex kit gearing to confirm the ratio change suits your riding style before installation.