RK M420 Standard Roller Chain, 126 Links (M420-126)

The RK M420-126 Standard Roller Chain is engineered for dependable power transmission in motorcycles, ATVs, go-karts, and other applications requiring a durable 420-size chain. Constructed from heat-treated medium carbon alloy steel, this chain is designed to provide consistent performance under demanding operating conditions. The RK brand is recognized for precision-manufactured chain components that support smooth engagement and reliable service life.
All components of the RK M420-126 are heat-treated and shot-peened to improve strength, fatigue resistance, and durability. Four-point pin riveting helps secure the chain assembly, while solid rollers provide dependable contact with sprocket teeth and contribute to consistent operation. This combination of manufacturing features makes the chain well suited for replacement or original-equipment applications where reliable mechanical performance is essential.
The RK M420-126 includes 126 links and comes with a clip connecting link for convenient installation and maintenance. Verify chain size, link count, and connecting-link style before installation to ensure compatibility with the intended sprockets and drivetrain. With its robust construction and carefully treated components, this RK standard chain offers a practical solution for maintaining efficient power transfer.

Features:

• Heat-treated medium carbon alloy steel construction for strength and durability

• All components heat-treated and shot-peened for improved fatigue resistance

• Four-point pin riveting helps secure the chain assembly

• Solid rollers support consistent sprocket engagement

• Includes clip connecting link for installation and maintenance

• 126-link configuration for compatible 420-size applications

Ships from Parts Unlimited.