EK CHAIN 420SRO O-Ring 420 Universal ChainRef : EKC00466A / 1129887026

EK 420SRO O-Ring Drive Chain — Manufacturer part number: 420SRO-STL 134 SKJ
The SRO series from EK CHAIN offers an accessible O-ring chain designed for riders who want a reliable part without extravagance. Built with a reduced perforation to limit weight and heat-treated steel alloys, this 420SRO retains EK's precision craftsmanship while being easy to maintain thanks to its O-Ring seals.

• Pitch: 420
• Number of links: 134
• Color: Steel / Steel
• Relative lifespan (for 100 links): 1000
• Weight: 0.78 kg / 100 links (≈ 1.05 kg for 134 links)
• Type: O-Ring (O-ring for retaining internal lubricant)

Suitable for Urban, Cross, and Roadster environments, this chain is designed for transmissions requiring a 420 pitch. It is ideal for standard replacements or restorations where simplicity, apparent robustness, and ease of maintenance (regular lubrication recommended) are desired.

Common compatibilities (examples):

• HONDA CRF 110 F (JE02) 2026
• YAMAHA YZ 85 LW BIG WHEELS 19/16 (CB10) 2026
• GAS GAS MC 65 2025