RK 520 MXU Sealed Racing UW-Ring Chain – 116 Links

RK 520 MXU Sealed Racing UW-Ring Chain — the lightest sealed-ring chain on the market. Built to deliver consistent power transfer and extended chain life, this chain is engineered for serious riders who demand maximum efficiency and strength from their drivetrain.

Weighing only 3 lb. (1.36 kg) per 100 links, the MXU series offers the perfect balance of lightweight design and high tensile strength, making it ideal for competitive motocross and off-road racing.

Features:

• Lightest sealed-ring racing chain available today

• Delivers consistent power delivery and smooth performance

• UW-Ring design reduces friction and increases durability

• Only 3 lb. (1.36 kg) per 100 links – lightweight yet ultra-strong

• Built for race applications between 125–500 cc

• Includes clip-type connecting link for easy installation

Specifications:

• • Chain Size: 520

  • Links: 116

  • Type: Sealed Racing UW-Ring Chain

  • Weight: 3 lb. / 1.36 kg per 100 links

  • Application: 125 cc – 500 cc race bikes

  • Manufacturer: RK Chain