Vortex CK4241 Chain and Sprocket Kit with Hardcoat Aluminum Rear Sprocket - 525RV3

The Vortex CK4241 is a complete, ready-to-install chain and sprocket kit built around Vortex's premium 525RV3 Performance Links chain, manufactured in Japan to exacting quality standards. No chain cutting is required — everything needed for a direct bolt-on installation is included.

The centerpiece of this kit is the SV3 Series chain, which features a dual pocket sealing system that delivers up to 7 times longer wear life compared to standard O-ring chains. The 525RV3 chain is 108 links in length and comes equipped with a rivet-type master link for a secure, competition-grade connection. Clip-type master links are available separately for riders who prefer them.

Kit Specifications:

• Chain: 525RV3-108 (108 links)
• Chain Type: SV3 Series with dual pocket seal system
• Front Sprocket: 17 teeth (OE gearing)
• Rear Sprocket: 40 teeth — hardcoat aluminum (OE gearing)
• Master Link: Rivet-type included; clip-type available separately
• Chain Origin: Made in Japan

Key Features:

• Ready-to-install kit — no chain cutting required
• Dual pocket sealing system for superior longevity
• Up to 7x longer wear life vs. standard O-ring chains
• Lightweight hardcoat aluminum rear sprocket for reduced unsprung weight
• SSA (Superstreet) sizing: heavier-duty than 520 kits, lighter than stock 530 setups
• Ideal upgrade for liter-class and larger sportbikes

This kit maintains stock OE gearing (17/40), making it a seamless replacement that preserves factory power delivery and top speed characteristics while significantly improving chain durability and overall drivetrain performance.