Vortex CK5249 Chain and Sprocket Kit Conversion with Hardcoat Aluminum Rear Sprocket - 520

The Vortex CK5249 is a complete chain and sprocket kit engineered for performance riders seeking a direct bolt-on upgrade. This kit is ready to install right out of the box — no chain cutting required. Every component is precision-matched so you can upgrade your drivetrain in one purchase with confidence.

The included Vortex SV3 Series 520RV3 chain is manufactured in Japan to the highest quality standards in the industry. It 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 value for both street and track use.

Kit Specifications:

• Chain: 520RV3 — 110 links
• Chain Type: SV3 Series with dual pocket sealing (advanced O-ring design)
• Front Sprocket: 16T steel (one tooth down from OE)
• Rear Sprocket: 43T hardcoat aluminum
• OE Gearing: 17/43
• Vortex Kit Gearing: 16/43 (GFRA 520 conversion — lower gear ratio for faster acceleration)
• Conversion: 520 format

Key Features:

• No chain cutting required — fully pre-sized and ready to install
• Japanese-manufactured chain for superior quality and consistency
• Dual pocket sealing system for dramatically extended wear life vs. standard O-ring chains
• Hardcoat aluminum rear sprocket for a lightweight yet durable upgrade
• GFRA (Go Fast) lower gear ratio configuration enhances off-the-line and mid-range acceleration
• Complete kit — chain, front sprocket, and rear sprocket included

The Vortex CK5249 is an ideal choice for riders who want to optimize their motorcycle's acceleration response through a proven 520 conversion kit, backed by Vortex's reputation for motorsport-grade drivetrain components.