EK CHAIN 525ZN/3D RIVET, 108, GLD/GLD

EK Chain 525ZN/3D

The EK 525ZN/3D is a premium drive chain from the THREE D Street / Supersport Z Series, engineered to handle the extreme torque of modern large-displacement motorcycles. Its precision-forged 3D plate design combines maximum strength, reduced weight, and high transmission efficiency. The ZN surface treatment provides additional corrosion protection, making the 525ZN/3D a top-tier choice for high-performance street and supersport bikes.

Technical Features

• 525 chain pitch – reinforced design for high-performance street and supersport motorcycles
• Z-Series THREE D – developed for maximum durability under extreme loads
• Precision forged 3D plates with reduced outer volume for minimized stress and optimal strength-to-weight ratio
• Chamfered outer plate – lightweight design with premium aesthetics, approx. 10% weight reduction
• Drilled pins – reduced material for approx. 5–7% weight savings
• Chamfered inner plate – optimized for efficiency and smooth operation, approx. 4.1% weight reduction
• Improved transmission efficiency through high part precision and accurate assembly
• ZN coating (zinc finish) for excellent corrosion and weather protection
• Award-winning design: Good Design Award 2009
• Ideal for high-torque motorcycles requiring low weight and maximum durability

Technical Specifications – 525ZN/3D

• Pin length: 23.10 mm
• Inner plate thickness: 2.2 mm
• Outer plate thickness: 2.4 mm
• Tensile strength: 44.6 kN
• Weight: 2.10 kg per 100 links
• Wear index (Std. 10=100): 3,200
• Seal type: QX2
• Max engine capacity: 1,200 cc (Street), not recommended for Off-Road