Upgrade your final drive with the DID 520ERVT X-Ring chain—built to deliver smooth power transfer with less maintenance in harsh off-road conditions. It takes the concept of the original motocross (non O-ring) chain and adds the benefits of an X-Ring seal, helping you get a longer-lasting chain without giving up the lightweight feel riders want for MX and enduro.
The X-Ring helps keep the chain sealed with lubrication and limits dirt and mud from getting between the side plates. With only 4 contact points against the plates, it produces less friction than a traditional O-ring chain—supporting efficient power delivery and consistent performance ride after ride.
Key features:
✅ X-Ring sealed design to retain lubrication and block contamination
✅ Lightweight & long-life: approx. 2% lighter with ~15% longer lifespan (vs. prior material setup) while maintaining tensile strength
✅ Ready for off-road use with a clip-type master link for convenient installation
Benefits of use:
🔹 Less wear in mud and dust thanks to improved sealing
🔹 Smoother, freer-running drivetrain due to reduced seal friction
🔹 Great all-round choice for MX/enduro riders who want durability without a heavy feel
Technical specifications:
📌 Brand: DID
📌 Chain size: 520
📌 Chain type: 520 ERVT
📌 Seal type: X-Ring
📌 Number of links: 118
📌 Master link: Clip type
📌 Color/finish: Gold
📌 Tensile strength: 37.5 kN (8440 lb)
📌 Max engine displacement (off-road): up to 500 cc
📌 Weight: 1.46 kg / 100 links
Why choose this chain?
⭐ Proven DID quality for demanding off-road conditions
⭐ X-Ring sealing helps extend chain life and reduce downtime
⭐ Strong performance specs in a lighter, race-ready package
