D.I.D 520VO O-Ring Chain

The D.I.D 520VO O-ring chain is a professional-grade O-ring sealed drive chain. It works as an OEM replacement motorcycle drive chain on street and off-road bikes and ATVs up to 750cc. The O-rings seal lubricant in and keep dirt and moisture out. This helps the chain resist wear and last longer between replacements.

Key Features:

• 520 chain size with sealed O-ring construction
• Quad-stake riveted pins and solid bushings for strength and long chain life
• Reinforced rollers for greater impact resistance
• Average tensile strength of 8,000 lbs
• Chain life index of 2350 (standard chain = 100)
• Recommended for machines originally equipped with O-ring chains
• Comes with a clip-type connecting link

D.I.D is a well-known Japanese chain maker, and its chains are used by factory race teams. The 520VO line gives riders a durable, sealed replacement chain that suits everyday riding, trail use and dual-sport use. Connecting links are specific to the chain model. Use only a connecting link made for the 520VO.