The EK 420 SR is a heavy-duty, non-sealed roller chain designed for reliable power transmission and extended wear resistance in compatible motorcycle, powersports, and mechanical drive applications. Manufactured by EK Chain, this 132-link chain is built for users who need dependable performance from a cost-effective replacement or upgrade. The product is identified by EK manufacturer part number 420SR-132 and vendor part number 420SR-132.
Constructed from special steel alloy components, the EK 420 SR features solid rollers, solid bushings, and pre-stretched links to support consistent operation and reduce initial chain adjustment. Four-point riveting strengthens the pins and side plates, while shot-peened components help improve fatigue resistance under repeated loads. The non-sealed design is suited to applications where a conventional roller chain is specified and where routine lubrication and maintenance are part of the service schedule.
This EK chain includes a clip-type master link for installation and service convenience. It is configured with a 420 chain size and 132 links, making it suitable for compatible motorcycle and powersports drivetrain fitments that call for these specifications. Always confirm the required chain size, link count, sprocket compatibility, and manufacturer fitment requirements before installation. Proper alignment, lubrication, and tension adjustment are recommended for optimal chain life and performance.
Features:
- Size: 420 roller chain
- Model: 420 SR
- Link count: 132 links
- Design: Heavy-duty non-sealed chain
- Construction: Special steel alloy with solid rollers and solid bushings
- Durability: Four-point riveting, pre-stretched links, and shot-peened components
- Included hardware: Clip-type master link
- Brand: EK
- Manufacturer part number: 420SR-132
- Vendor part number: 420SR-132
- Fitment: Compatible motorcycle, powersports, and mechanical drive applications requiring a 420-size, 132-link chain