Easton ec70 sl stemcombining aluminum and carbon fiber opened the door for our engineers to makethis one of the stiffest stems on the market weight is impressive too at 140 grams easton has learned a number of tricks along the way to make the best stems on themarket and that experience shows with the ec70 sl stem we leverage our exclusivetaperwall technology and a touch of titanium hardware and our proprietary distributedstress technology and top lock faceplate to boost performance and of