EK 520 RR/SM SX-Ring Race Rivet Link(RAS)

The EK 520 RR/SM SX-Ring Race Rivet Link(RAS) is engineered for race-ready reliability, specifically tuned for EK 520 RR/SM chains. This rivet link isn’t just another connector—it’s a purpose-built performance upgrade designed to withstand the rigors of high-torque, high-RPM riding.

What sets the SX-Ring Race Rivet Link apart is the combination of sealing efficiency and durable geometry that keeps your chain performing at its best when conditions get aggressive. The SX-Ring design creates a tight seal at the joint, reducing lubricant wash-out and minimizing dirt ingress. The result is smoother power transfer, longer chain life, and more consistent shifting under track-day stress or spirited street rides.

• 
  SX-Ring sealing for reduced friction and better longevity—designed to preserve lubrication where it matters most and lower rolling resistance during aggressive riding.
• 
  Rivet Link(RAS) construction—robust rivet pin and secure locking mechanism that stands up to high-torque loads without looseness or misalignment.
• 
  Lightweight, race-tocused geometry—thin profile and precise tolerances that ensure clean articulation through every sprocket and chainring combination.
• 
  Corrosion-resistant coating—built to resist the elements so performance remains consistent across track days, wet commutes, and summer heat.
• 
  Designed for 520 RR/SM chains—perfectly matched to EK’s 520 RR/SM lineup, delivering dependable performance in demanding racing or high-performance street setups.

Who should consider this rivet link? Any rider who pushes a 520 chain setup to its limits—track riders, clubsport enthusiasts, and serious hobbyists alike—will appreciate the reliability, ease of use, and longevity this link brings to daily training and race weekends. If you rely on precise power delivery and consistent endurance from your EK 520 chain system, the SX-Ring Race Rivet Link(RAS) is a practical upgrade worth adding to your toolkit.

Key use scenarios include sustained high-speed runs on the track, repeated acceleration and braking in tight corners, and long-distance sessions where chain wear is a real concern. Compared to generic rivet links, this EK option offers superior sealing, tighter tolerances, and a design tailored to the specific 520 RR/SM chain family—reducing the need for frequent adjustments and helping you maintain peak performance over time.

Quick-install tips for reliable results: clean the chain ends before installation, align the link precisely with the chain, and use an appropriate rivet tool to seat the pin to the recommended depth. After installation, rotate the chain by hand to verify smooth articulation, then take a short test ride to confirm seating. Regular inspection of the rivet link will help catch wear early and keep your drive clean and efficient.

Upgrade with confidence: the EK 520 RR/SM SX-Ring Race Rivet Link(RAS) brings race-grade sealing, robust construction, and dependable performance to your 520 chain setup, helping you squeeze every watt of power out of your ride while extending chain life and reducing maintenance downtime.