Vortex CK4123 525 Chain and Sprocket Kit WSS Steel 15/40 Tooth

The Vortex CK4123 is a WSS (Warranty Steel) chain and sprocket kit engineered as a direct OEM replacement, maintaining stock 15/40 gearing and 525-pitch chain size for maximum drivetrain durability. Every component arrives pre-sized and ready to bolt on — no chain cutting or modification required.

At the heart of this kit is a 525SV3 x-ring chain manufactured in Japan to the highest quality standards in the industry. The SV3 Series chain utilizes a dual pocket sealing system that delivers up to 7 times longer wear life compared to standard o-ring chains, keeping maintenance intervals further apart and your bike on the road longer.

Kit Includes:

• Steel front sprocket — 15 tooth
• Laser-cut carbon steel rear sprocket — 40 tooth
• 525SV3 Japan-made x-ring chain — 108 links
• Rivet-type master link (clip-type master link sold separately)

Specifications:

• OE Gearing: 15/40
• Kit Gearing: 15/40
• Chain Type: 525SV3
• Chain Length: 108 links
• Chain Application: Street
• Kit Type: WSS (Warranty Steel)

The WSS designation means this kit is built to OEM gearing specifications using durable steel sprockets, making it an excellent long-lasting alternative to expensive factory replacement parts. The laser-cut steel rear sprocket provides precise tooth geometry for smooth, efficient power transfer and extended sprocket life.