DID 520 ERT3 is a high-performance, non-sealed motocross chain built for racing with low friction and a strong strength-to-weight ratio. A proven choice used by many factory race teams.
DID 520 ERT3 Chain is engineered specifically for motocross racing where low friction, light weight and dependable power transfer matter most. As D.I.D’s #1 selling motocross chain, it’s trusted by many factory race teams and is a go-to option for competitive riders—especially popular in the 250 class thanks to its outstanding strength-to-weight ratio.
If you want faster response and efficient drive without the extra drag of sealed chains, the non-sealed ERT3 design helps maximize performance for track use. The included clip-type master link makes installation and service quick and practical at the track.
