D.I.D 520ATV (104) Gold Racing Chain

Special steel alloy is used to minimize heat cracking in cold weather due to severe heating and cooling during competition.

Features;

• D.I.D's Patented X-Ring is superior to others.
• Half the power loss (Compared with Normal O-Ring) - D.I.D's patented X-Ring construction reduces friction by twisting between the side plate instead of being squashed.
• The twisting action of the X-Ring disperses the pressure and minimizes power loss.
• X-Ring Chain Endurance Performance (Compared with Normal O-Ring) - The X-Ring's four contact points greatly increase its sealing performance. This keeps the dirt out and the lubrication in much better than any other O-Ring type seal.

Solid Bush - Cold-Formed High-Precision Bushing:

• Solid Bushing chains have a high wear-resistance. The cold-formed solid bushings have a smooth seamless surface with complete roundness.
• Solid bushing = longer chain life