EK CHAIN 525DEX SEMI PRESS, 108, STL/STL

EK Chain 525DEX – Robust Street Chain with QX-Ring Technology

The EK 525DEX is a high-quality drive chain from the ECO Street Series by EK Japan, developed specifically for

more powerful street motorcycles. It meets the high quality standards of EK Japan and delivers reliable power transmission

with an excellent price-performance ratio. Thanks to the advanced QX-ring sealing technology,

the 525DEX offers reduced friction, long service life, and consistent performance in everyday use.

Technical Specifications – EK 525DEX

Chain pitch: 525

Pin length: 26.40 mm

Inner/outer plate thickness: 2.0 mm / 2.0 mm

Tensile strength: 32.9 kN

Weight per 100 links: 1.65 kg

Seal type: QX-ring

Wear index (STD. AS 100): 3,100

Maximum recommended engine capacity: 500 cc (street)

Advantages of the EK 525DEX

QX-ring technology: Optimized lubricant retention, reduced friction, extended chain life

Reinforced design: Ideal for motorcycles with higher torque

High reliability: Consistent performance even on long-distance rides

Japanese quality: Precision manufacturing and durable materials

Designed for daily use, touring, and sporty street riding

Conclusion

The EK 525DEX is the ideal choice for riders looking for a reliable, durable, and cost-effective

drive chain for more powerful street motorcycles. With its QX-ring sealing, solid tensile strength,

and high wear index, it offers an excellent balance of durability, efficiency, and riding comfort.