The EK 428 O-Ring Chain 104L is built for riders who refuse to compromise on durability and reliability. This sealed-drive chain uses proven O-ring technology to keep lubrication in and dirt out, so you get smoother power delivery and fewer maintenance sessions, mile after mile.

• O-ring sealed for long-lasting lubrication — The rubber seals trap lubricant inside the chain links, dramatically extending life in wet, muddy, or dusty conditions and reducing chain wear.
• 104L length for broad compatibility — With a 104-link design, this EK 428 chain fits a wide range of motorcycles and ATVs that use a 428 drive system, making it a versatile upgrade or replacement choice.
• Robust construction with surface protection — Crafted from high-strength alloy steel and finished to resist corrosion, this chain stands up to daily riding, aggressive acceleration, and back-road riding alike.
• Precise, durable performance — Precision-machined pins and bushings ensure consistent pitch and smooth engagement with the sprockets, helping maintain consistent power transfer and reducing stretch over time.
• Low-maintenance by design — Thanks to sealing, the chain stays cleaner longer and requires fewer adjustments, so you spend more time riding and less time servicing.

Who should consider the EK 428 O-Ring Chain 104L? If you ride a motorcycle or ATV that uses a 428 drive chain and you want extended chain life, improved resistance to corrosion, and dependable performance in diverse conditions, this chain is an excellent match. It’s ideal for daily commuters facing variable weather, weekend adventurers tackling mixed terrain, and sport-touring riders who demand steady torque delivery over long distances.

Key use cases — Replacement for worn or stretched 428 chains, upgrade for reliability on bikes with high-torque outputs, and performance optimization for riders who frequently ride in rain, mud, or dusty environments. The 104L length accommodates a wide range of setups, so you can refresh your drivetrain without changing sprockets or frame geometry.

Installation and compatibility tips — Ensure your motorcycle or ATV is equipped with standard 428 sprockets and that 104 links match your chainline and tension specs. When installing, use the appropriate chain rivet tool or master link as required, and recheck tension after the initial ride to reach the manufacturer’s recommended slack. If you’re replacing an older chain, inspect the sprockets for wear and consider changing them together to maximize longevity and performance.

For riders who value predictable performance, reduced maintenance, and extended drivetrain life, the EK 428 O-Ring Chain 104L delivers. It’s a purpose-built solution for reliable power transfer across a wide range of riding conditions, helping you stay focused on the road, trail, or track ahead.