EK 520 SRX2 Quadra X-Ring Motorcycle Chain

EK 520 SRX2 Quadra X-Ring Motorcycle Chain

The EK 520 SRX2 is a premium Quadra X-Ring chain engineered for both competition use and OEM replacement. Featuring lightening holes for reduced rotating mass, a low-friction design, and EK’s proprietary Quadra X-Ring seal technology, the SRX2 delivers 1.5–2x the service life of a standard O-ring chain — making it one of the best value performance chains available for sport bikes, mini bikes, and high-performance street builds.

Features

• Quadra X-Ring Seal Design – Four-lip seal retains lubrication and excludes contaminants more effectively than standard O-ring chains, extending chain life by 1.5–2x
• Lightening Holes – Reduces overall chain weight and rotating mass for improved throttle response and acceleration
• Reduced Friction Construction – Lower friction between inner and outer plates for smoother power transfer and less heat buildup
• Competition & OEM Replacement Ready – Suitable for track use and direct OEM chain replacement
• Clip-Type Master Link Included – Easy installation without the need for a chain press

Specifications

• Chain Pitch: 520
• Series: SRX2
• Seal Type: Quadra X-Ring
• Master Link: Clip-type (included)
• Link Count: Select from variant options above

Compatibility

Compatible with all motorcycles and mini bikes running a 520-pitch chain. Verify your sprocket pitch and required link count before purchasing.