EK CHAIN 420SRO O-Ring 420 Universal ChainRef : EKC00459A / 1129887019

Manufacturer reference: 420SRO-STL 120 SKJ

The EK 420SRO O-Ring chain is a transmission designed for riders seeking a balance between durability and affordability. Equipped with O-Rings to limit lubricant loss between links, it keeps corrosion and wear at bay while remaining accessible. Its construction is based on thermally treated steel alloys and precision craftsmanship unique to EK, featuring perforated links to lighten the overall weight without compromising the mechanical strength expected on the road or in light off-road conditions.

• Type: O-Ring transmission chain (O-rings)
• Pitch: 420
• Number of links: 120
• Color: Steel / Steel
• Weight: 0.78 kg / 100 links
• Lifetime index (relative): 1000 (manufacturer reference for 100 links)

Suitable for urban, cross, and roadster environments, this chain is particularly well-suited for small displacement and lightweight machines where weight savings and sealing reliability are sought. Possible mounting examples include:

• HONDA CRF 110 F (JE02) — 110 cm3
• YAMAHA YZ 85 LW BIG WHEELS 19/16 (CB10) — 85 cm3
• GAS GAS MC 65 — 65 cm3

Easy to install and designed for versatile use, the EK 420SRO is a solid option for maintaining your motorcycle's transmission while keeping your budget in check.