Product Description
ER chain used by top motocross/supercross OEM works teams. ER chain designed for motocross. Provides the highest wear resistance, tensile strength and impact resistance available. This is a Heavy Duty Road Race style chain.
415 is lighter, requires both sprockets as well. it is more expensive but less spinning mass so less drag on motor = theoretcally faster.
Links: 120
PART#: DC415120
