DescriptionDID VX3 ‘O’ Ring Heavy Duty 520 Chain, 100 links.520VX3 boasts a 32% longer chain life than the VO Series due to our patented X-Ring seal technology.It also has increased rigidity as to reduce flex, which gives you a more responsive and smooth driving experience.It is DID’s most popular and widely used chain on both on and off-road bikes.
