Vortex CK2246 GFRA Conversion Chain and Sprocket Kit - 520 15/43

The Vortex CK2246 is a GFRA (Go Fast) 520 conversion chain and sprocket kit designed to deliver quicker acceleration by dropping one tooth on the front sprocket while retaining the stock rear tooth count. This ready-to-install kit includes a steel front sprocket, a hardcoat aluminum rear sprocket, and a premium 520RV3 chain — no chain cutting required.

Kit Gearing Specifications:

• OE Gearing: 16/43
• Vortex Kit Gearing: 15/43 (one tooth down in front, stock rear)
• Chain Type/Length: 520RV3 — 108 links
• Chain Strength: 8,800 lbs tensile strength

Chain — Vortex 520RV3 Series:

• Manufactured in Japan to premium quality specifications
• Dual-pocket sealing system provides up to 7 times longer wear life compared to standard O-ring chains
• Includes a rivet-type master link (clip-type links available separately)
• Black finish for a clean, aggressive appearance

Rear Sprocket — F5 PTFE Black Hardcoat Aluminum:

• Hard anodized with a jet black dye, then coated with PTFE for added lubricity
• Constructed from 7075-T6 aerospace-grade aluminum for optimal strength-to-weight ratio
• Reduces rotating mass for improved throttle response and acceleration
• Ultra-tough finish stays cleaner and resists wear longer than standard aluminum sprockets

Front Sprocket — Steel:

• Chromoly steel construction for durability
• Precision-cut for reliable chain engagement and power transfer

This complete kit is a direct performance upgrade, swapping the OEM 520 chain and sprocket setup for a lighter, faster-wearing 520 conversion package. The lower front sprocket tooth count sharpens low-end acceleration and throttle response — ideal for street riders looking to optimize their riding experience.