The EK 520SR-120 is a heavy-duty, non-sealed roller chain designed for reliable performance in powersports and other compatible drive applications. This 520-size chain includes 120 links and is manufactured by EK with a focus on durability, consistent operation, and economical replacement value. Its fitment should be verified against the vehicle or equipment manufacturer’s specifications, sprocket condition, chain size, and required link count before installation.
Built from a special steel alloy, the EK 520SR-120 uses solid rollers and solid bushings to support extended wear life under demanding operating conditions. The chain is pre-stretched to help reduce initial adjustment requirements, while shot-peened components improve resistance to fatigue and repeated load cycling. Four-point riveting reinforces the chain assembly and helps maintain dependable pin and link integrity during use.
A clip-type master link is included for convenient installation and service. The EK 520SR-120 is supplied as a 120-link chain and may require adjustment or professional installation depending on the application. Always use the correct master-link installation method, maintain proper chain tension, and replace worn sprockets when fitting a new chain. Manufacturer part number 520SR-120 and vendor part number K520SR120 identify this EK chain for ordering and application reference.
Features:
- Size: 520 roller chain
- Model: 520SR-120
- Brand: EK
- Manufacturer part number: 520SR-120
- Vendor part number: K520SR120
- Link count: 120 links
- Chain type: Heavy-duty non-sealed roller chain
- Construction: Special steel alloy with solid rollers and solid bushings
- Durability: Four-point riveting, shot-peened components, and pre-stretched construction
- Included component: Clip-type master link
- Fitment: Suitable for compatible powersports and drive applications when chain size, link count, and manufacturer specifications match