Main benefit: The DID 520ERVT breaks the “either/or” choice between a lightweight non O-ring motocross chain and a long-lasting sealed chain. It delivers a fast, efficient feel while adding the protection and longevity benefits of an X-Ring seal. This means smoother power transfer, less maintenance-related wear, and better performance in mud and dusty conditions.
How it helps: Off-road riding constantly forces dirt and grit into your drivetrain. The 520ERVT’s X-Ring sealing helps keep factory lubrication where it belongs and limits contamination between side plates, reducing friction and extending service life—so you spend more time riding and less time adjusting or replacing worn drivetrain parts.
Key features:
✅ X-Ring seal helps retain lubrication and reduce ingress of dirt and mud
✅ Low-friction design with only 4 contact points vs. traditional O-ring style sealing
✅ Lightweight & durable—engineered to be ~2% lighter with ~15% longer lifespan while maintaining tensile strength
Benefits of use:
🔹 Longer chain life for fewer replacements over the season
🔹 More consistent drivetrain efficiency thanks to reduced seal friction
🔹 Great off-road choice for riders who face mud, dust and frequent wash cycles
Technical specifications (when needed):
📌 Brand: DID
📌 Chain size: 520
📌 Seal type: X-Ring
📌 Number of links: 114
📌 Master link: Clip type
📌 Color/finish: Gold
📌 Tensile strength: 37.5 kN (8440 lb)
📌 Weight: 1.46 kg / 100 links
📌 Max off-road displacement: up to 500 cc
Why choose this product?
⭐ DID quality and proven drivetrain engineering for demanding off-road use
⭐ X-Ring sealing helps protect your investment by reducing wear from contamination
⭐ A smart upgrade for riders who want a lighter chain feel without sacrificing longevity
