The new V3 interface incorporates the lion's share of the innovation placed in this award and race-winning electronic transmission. With its new design as well as a plethora of useful and innovative new technologies, this small component improves the EPS experience in a big way. Improved integration, facilitated and nofuss charging, improved led diagnostics and wireless technology that allows for increased interaction with the groupset are just a few of the improvements housed in its tiny structure.