The EK 525SRX2-160 SRX2 Quadra X-Ring chain is designed for street-focused sport bikes that demand dependable power transfer and long service life. Built in the 525 series with 160 links, this chain provides a practical replacement or upgrade for compatible motorcycle drivetrains. The SRX2 series delivers excellent value for everyday street machines while maintaining the strength and durability needed for spirited riding.
Its Quadra X-ring design helps reduce friction between the chain components, supporting smoother operation and extending chain life up to 1.5 to 2 times longer than a standard O-ring chain under comparable conditions. Lightweight side-plate holes reduce overall chain weight by approximately 3 percent, helping minimize rotating mass without compromising the chain’s intended performance.
Use the EK 525SRX2-160 only when its 525 chain size, 160-link length, and application specifications match your motorcycle. Fitment should be confirmed against the motorcycle manufacturer’s original equipment requirements, sprocket configuration, and service manual. Proper installation, lubrication, alignment, and tension adjustment are essential for maximizing chain life and maintaining safe, reliable operation. The manufacturer part number is 525SRX2-160, and the vendor part number is 693-1860.
Features:
- Brand: EK
- Manufacturer: EK Chain
- Manufacturer Part Number: 525SRX2-160
- Vendor Part Number: 693-1860
- Chain Size: 525 series
- Chain Type: SRX2 Quadra X-ring
- Application: Street sport bikes and compatible motorcycle drivetrains
- Link Count: 160 links
- Friction Reduction: Quadra X-ring design helps reduce friction and extend chain life
- Weight Reduction: Lightening holes in the side plates reduce chain weight by approximately 3 percent
- Service Life: Designed to last approximately 1.5 to 2 times longer than a standard O-ring chain under comparable conditions