EK 520 SRX Steel Quadra-X Ring Chain | By EK Chain | For Electric and Street Motorcycles Using 520 Chain

Reliable, High-Value Chain Built for Smooth Power Delivery and Long Wear Life

The EK 520 SRX Steel Quadra-X Ring Chain is a durable and cost-effective drivetrain option for riders running a 520 chain setup. Designed for street motorcycles up to 650cc and well suited for electric motorcycles, the SRX Steel chain delivers dependable strength, reduced friction, and extended service life without unnecessary cost.

This chain uses EK’s proven Quadra-X Ring sealing technology to reduce internal friction while keeping lubrication sealed inside the chain. Compared to a standard O-ring chain, the SRX Steel offers 1.5 to 2 times longer wear life, making it a solid choice for riders who want reliability and smoother drivetrain performance over time.

Key Features

• Quadra-X Ring sealed chain for reduced friction and extended chain life
• Rated for street motorcycles up to 650cc
• Compatible with all bikes using a 520 chain
• Lightening holes in side plates to reduce rotating mass
• Smooth and consistent power transfer
• Steel finish for durability and everyday use

Why Choose the EK SRX Steel

The SRX Steel chain is ideal for riders who want proven performance and longevity without stepping up to higher-cost race chains. Its strong tensile rating and low-friction design make it well suited for electric motorcycles and street builds where smooth delivery and durability matter most.

Technical Information

• Chain Size: 520
• Chain Type: Quadra-X Ring
• Tensile Strength: 8,500 lbs (37.8 kN)
• Finish: Steel

Fitment

• All bikes using a 520 chain
• Stark Varg
• Altis Omega
• Sur-Ron Storm Bee
• Sur-Ron Ultra Bee
• Talaria Komodo
• Arctic Leopard 880
• Arctic Leopard EX / XE 880 / 800 (Cheetah) – 520
• Arctic Leopard EXT 700 / 600 / 500 – 520
• Arctic Leopard EX 800 / 700 / PRO
• KTM Freeride E-XC
• Zero Motorcycles FX and FXE (with chain conversion kit)
• Flux Primo
• Electric Motion Escape and Epure
• Yamaha TY-E 2.2

The EK 520 SRX Steel Quadra-X Ring Chain delivers a strong balance of durability, smooth operation, and long wear life, making it a dependable choice for everyday riding and high-torque electric motorcycle applications.