D.I.D 520VX3 G&B Chain+Connecting link rivet type (ZJ)

DID is a Japanese manufacturer of high-performance transmission parts and is internationally known for its high-quality chains and chain sets. They are very active in the competition world and develop their chains in collaboration with numerous international teams.

• Longer Wear Life
  D.I.D's VX Series boasts a much longer chain life than the VO Series due to the patented X-Ring technology. The 520VX3 has a 32% longer chain life than the 520VO and the 525 and 530VX3 has a 41% longer chain life!

• Patented X-Ring
  The VX chain series showcases the industry-leading, patented X-Ring seal technology, which leads to extended chain life, minimal friction, and overall amazing performance