Vortex CK2243 Chain and Sprocket Kit with Hardcoat Aluminum Rear Sprocket - 520

The Vortex CK2243 is a complete, ready-to-install chain and sprocket kit built for performance riders who demand precision and durability. No chain cutting is required — everything you need arrives pre-sized and ready to bolt on.

At the heart of this kit is Vortex's 520RV3 Series chain, manufactured in Japan to the highest quality standards in the industry. The SV3 Series chain features a dual pocket sealing system that delivers up to 7 times longer wear life compared to standard O-ring chains, making it an exceptional upgrade over OEM drivetrain components.

Kit Specifications:

• Chain: 520RV3 — 108 links
• Chain Type: X-ring / dual pocket sealed
• Front Sprocket: 15 teeth (one tooth down from stock)
• Rear Sprocket: 43 teeth — hardcoat aluminum construction
• OE Gearing: 16/43
• Vortex Kit Gearing: 15/43
• Conversion: 520 format

Key Features:

• Complete kit — no chain cutting required
• Japanese-manufactured chain for superior quality and consistency
• Dual pocket seal technology for extended wear life vs. standard O-ring chains
• Hardcoat aluminum rear sprocket for reduced unsprung weight
• Geared one tooth down in front for improved low-end acceleration
• GFRA (Go Fast) 520 conversion configuration

Compare OE gearing to Vortex kit gearing to verify gear ratio differences before installation. Vortex chain and sprocket kits are trusted by racers and street riders alike for their consistent quality and performance-focused engineering.