The easton ec70 sl 318mm carbon road stem is one of the stiffest stems on the market thanks to the combination of aluminium and carbon fibre construction easton have a way of making some of the best stems on the market thanks to their exclusive taperwall technology and a touch of titanium hardware this stem also weighs in at just 140grams other features on this easton road stem include proprietary distribution stress technology and top lock faceplate which will help to boost