EK Chain 520 Z/3D QX2-Ring Chain Gold/Gold Open with Rivet Link – 110 to 118 Links

For riders who want a chain that earns its keep day after day, the EK 520 Z/3D QX2-Ring in Gold/Gold delivers a compelling combination of tensile strength, long service life and low maintenance demand. Available in 110 to 120 links, it is engineered specifically for high-performance road and supersport motorcycles where reliable power transfer is non-negotiable.

Key Features

• Tensile strength of 41.6 kN (9,352 lbs) — handles sustained high-torque demands from powerful engines without compromise
• QX2-Ring seal technology locks lubricant inside each link and keeps contaminants out, reducing wear and extending service intervals
• Z/3D (ThreeD Z-Series) construction adds dimensional rigidity, keeping the chain tracking true under hard acceleration and heavy loads
• Gold/Gold finish provides corrosion resistance alongside a clean, sporty appearance that holds up over daily kilometres
• Supplied open with a rivet link for maximum security — the preferred connection method for high-output machines
• Available in your choice of link count (110–120) to suit a wide range of 520-pitch drivetrain configurations

Everyday Performance You Can Rely On

What separates a premium chain from a budget option is not just peak figures — it is how the chain behaves over thousands of road kilometres. With a relative service life rating of 3500 per 100 links and a weight of just 1.69 kg per 100 links, the EK 520 Z/3D sits at a practical sweet spot: light enough not to burden your drivetrain, strong enough to outlast lesser chains by a meaningful margin. Riders who commute on their supersport or tour on their naked bike will notice the smoother, quieter running and the reduced need to reach for the chain lube.

QX2-Ring Technology in Detail

The QX2-Ring seal is a step beyond a standard O-ring. Its geometry creates a more consistent sealing surface between the inner and outer plates, which translates directly into reduced friction, more effective grease retention and a longer replacement interval. For road riders, that means fewer garage sessions and more time riding — without sacrificing reliability.

Z/3D Construction and the Rivet Link

EK's ThreeD Z-Series design optimises the geometry of plates and pins to distribute stress more evenly across the chain under load. The result is a chain that resists stretching and side-flex even when paired with the higher torque outputs of modern inline-four and V-twin supersport engines. The open configuration with a rivet link ensures a fixed, permanent connection that does not rely on a clip, making it the right choice for any machine where a dropped chain link is not an option.

Fitment and Compatibility

This chain uses a 520 pitch and is available in 110 to 120 links, covering a broad range of road and supersport models. Compatible fitments include (among others):

• Aprilia RSV4, RSV4 R, RSV4 RR, RSV4 RF, RSV4 1100, RSV4 1100 Factory, RS 660, RS 457, Tuono V4, V4 R, V4 S
• BMW S1000RR, M1000RR, HP4, HP4R
• Ducati 848, 899, 959, 1199, 1199 S, 1199 R, 1299, 1299 S
• Honda CBR 600 RR, CBR 1000 RR, CBR 1000 RR-R
• Kawasaki ZX-6R, ZX-10 R, ZX-10 RR, ZX-4 RR, Ninja 400
• KTM RC 390, RC8 1190, 990 RC R
• MV Agusta F3, F4
• Suzuki GSX-R 600, GSX-R 750, GSX-R 1000
• Triumph Daytona 675, Daytona 675 R, Daytona 765, Daytona 765 Moto 2, Street Triple 765 R, Street Triple 765 RS
• Yamaha R3, R6, R7, R9, R1, R1M
• Bimota KB998 Rimini
• CFMoto, QJMotor, and further 520-pitch applications

Always verify the correct link count for your specific model, gearing setup and swingarm adjustment before ordering.

Specifications