Yamaha YZ250 1974 - 1986 EK 3D MXR Chain Gold

EK 3D MXR Chain Gold

Introducing the revolutionary ThreeD chain series by EK – a masterpiece of engineering that redefines what’s possible in motorcycle chain technology. These chains feature groundbreaking 3D-designed curved plates that don’t just look stunning with their everlasting beautiful light reflection, but deliver astonishing transmission efficiency for smooth and powerful acceleration.

The EK 520MXR 3D is a high-performance non-sealed racing chain built specifically for Motocross and Enduro competition. Engineered for riders who demand the best, it combines lightweight construction with exceptional durability through a range of advanced manufacturing techniques. Rated at 38.5 kN tensile strength, the 520MXR 3D is compatible with bikes up to 500cc (4-stroke) and 250cc (2-stroke).

EK 520MXR 3D Chains:

Flat-plate edge finish for smooth, low-friction contact with chain sliders and guides
CRH-treated pins for superior wear resistance and extended chain life
Cold-forged, chamfered inner and outer plates for maximum strength with minimal weight
Drilled pin design to further reduce rotating mass

Fitment Details

• Yamaha YZ250 1974
• Yamaha YZ250 1975
• Yamaha YZ250 1976
• Yamaha YZ250 1977
• Yamaha YZ250 1978
• Yamaha YZ250 1979
• Yamaha YZ250 1980
• Yamaha YZ250 1981
• Yamaha YZ250 1982
• Yamaha YZ250 1983
• Yamaha YZ250 1984
• Yamaha YZ250 1985
• Yamaha YZ250 1986