D.I.D. 520X108RB Standard Non-Sealed Drive Chain 520 Pitch 108 Links

The D.I.D. 520X108RB is a 520-pitch standard roller drive chain featuring 108 links in a natural finish. Designed for cycles originally equipped with a non-O-ring chain, this is a dependable, no-frills replacement that meets the needs of everyday riders and light-duty powersports applications up to 250cc.

D.I.D. (Daido Industrial Co.) is one of the world's leading chain manufacturers, and the 520D Standard Series represents their baseline entry-level offering. With an average tensile strength of 6,700 lbs. and a Chain Life Index rating of 100 — the industry standard baseline — this chain delivers reliable performance for standard riding conditions.

Key Features:

• 520 Pitch — industry-standard sizing compatible with a wide range of powersports applications
• 108 Links — full-length chain ready for trimming to your application
• Non-Sealed (No O-Ring) — lightweight, low-friction design suited for low- to mid-displacement machines
• Clip-Style Connecting Link Included
• Average Tensile Strength: 6,700 lbs.
• Chain Life Index: 100 (industry standard baseline)
• Maximum Engine Displacement: 250cc
• Seal Type: None (standard roller chain)
• Weight per 100 links: 3.12 lbs.

The D.I.D. 520D Standard chain is an economical choice for low-displacement motorcycles, dirt bikes, and ATVs where an unsealed chain is appropriate. For higher-performance or higher-mileage applications, D.I.D. offers O-ring and X-ring sealed chain upgrades.