GP415RR140 EK 415 RR gold chain 415 size 140 links racing gold

The EK 415 RR gold racing chain (415 pitch) with clip master link is engineered to deliver maximum lightness, precision, and high performance for track use on small-displacement motorcycles. Developed by EK Japan, this chain is used in top-level competitions such as JSB1000, Suzuka 8 Hours, ST600, J-GP2, J-GP3, and JP250, confirming its outstanding quality and reliability.

The non-sealed (no O-ring) design ensures direct and efficient power transmission, minimizing friction and improving engine response—essential for racing applications. Its extremely lightweight construction (0.69 kg per 100 links) reduces rotating mass, enhancing acceleration and responsiveness.

Manufactured using high-strength materials, the EK 415 RR provides excellent resistance to stress, wear, and racing conditions, maintaining consistent performance under track use. With a tensile strength of 20.5 kN (4609 lbs), it is perfectly suited for lightweight racing bikes.

The gold/gold finish adds a distinctive racing aesthetic, while the clip-type master link allows for quick and easy installation. The EK 415 RR is the ideal choice for riders seeking a lightweight, high-performance racing chain for small displacement bikes, designed to deliver maximum efficiency and precision on track.

Technical features:

• Brand: EK Chain (EK Japan)
• Model: 415 RR
• Pitch: 415
• Use: Track / Racing
• Quality: Small displacement racing
• Chain type: Non-sealed (no O-ring)
• Color: Gold / Gold
• Connection: Clip (master link)
• Links: 100
• Tensile strength: 20.5 kN / 4609 lbs
• Weight: 0.69 kg / 140 links
• Total weight: 0.69 kg
• Relative wear index: 450