EK CHAIN 420SRO O-Ring 420 Universal ChainRef : EKC00467A / 1129887027

EK 420SRO O-Ring Chain 420 — Ref. 420SRO-STL 136 SKJ

Designed for the final drive of small displacement bikes and maneuverability-oriented machines, the EK 420SRO O-Ring chain combines compactness and longevity. Coming from EK CHAIN's SRO series, it features perforated links to lighten the rolling train, thermally treated steel alloys, and O-Ring seals that minimize lubrication loss between the rollers and plates. Suitable for urban, cross, and roadster environments, it is well-suited for pit bikes and small cross bikes as well as lightweight everyday motorcycles.

• Brand: EK CHAIN
• Designation: EK 420SRO O-Ring 420 Drive Chain
• Manufacturer Reference: 420SRO-STL 136 SKJ
• Pitch: 420
• Number of Links: 136
• Color: steel / steel
• Weight: 0.78 kg (for 100 links)
• Life Index (reference 100 links): 1000

Before installation, check the number of teeth on the sprocket and the crown as well as the spacing. For reliable performance, lubricate and tension the chain according to the manufacturer's recommendations — essential for getting the best out of the final drive on the road or in closed terrain.