EK 520DEX

Durable QX-Ring Chain

The DEX series is a budget friendly sealed Quadra X-Ring (QX-Ring) chain. QX-Ring provides 1.5-2x longer chain life!

Quadra X-ring (QX-Ring) is a slim profile chain with 40% less friction than a normal O-Ring chain and 150% better endurance. Used for a variety of SRX2, 420SRX and 428ZVX series chains.