D.I.D. 520X110RB 520 Standard Series Non-Sealed Drive Chain 110 Links

The D.I.D. 520X110RB is a 520-series standard roller drive chain with 110 links, designed for motorcycles and powersports applications up to 250cc. As a non-sealed chain, it delivers reliable power transfer and is well-suited for machines that were originally equipped with non-O-ring chains.

D.I.D. (Daido Industrial Developments) is recognized as the world's leading motorcycle chain manufacturer, with their chains trusted by factory race teams across all major manufacturers and racing disciplines.

Key Features:

• 520 Chain Pitch — Industry-standard 520 series sizing for broad compatibility
• 110 Links — Ready to install or trim to length
• Non-Sealed Design — No O-ring or X-ring seal; ideal for machines originally equipped with standard roller chains
• Solid Rollers — Engineered for consistent contact and smooth engagement
• Shot-Peened Components — Improves fatigue resistance and overall chain durability
• High Cylindrical and Roundness Accuracy — Tight manufacturing tolerances for reduced friction and wear
• Pre-Stretched — Minimizes initial chain stretch after installation
• Special Alloy Steel Construction — Balances strength and weight for everyday riding use
• Tensile Strength: 6,700 lbs
• Chain Life Index: 100 (industry standard baseline rating)
• Max Engine Displacement: 250cc
• Weight per 100 Links: 3.12 lbs

The D.I.D. 520 Standard chain is a dependable, no-frills drive chain built to OEM replacement specifications. It is an economical choice for light-duty street, trail, and utility applications where a sealed chain is not required.