Easton EC 90 SL Carbon Stem To put it simply, the Easton EC90 SL stem is the lightest, and most sturdy stem in the world. It's also capable of handling years of abuse. Easton wanted to create an incredibly lightweight component that would handle harsh surfaces such as the cobble-stone roads of the Paris-Roubaix. They achieved that and more. The EC90 SL is so strong it will also be right at home on any crosscountry or cyclocross bike. Easton's Taperwall technology allows precise placement of additional material where strength is need, and less where compliance is the desired result. TapperWall increases strength and durability while also producing components that are lively, responsive and deliver additional ride quality. Along with Taperwall, Easton adds Top Lock technology to the EC90 SL, which, when properly installed, immobilizes the stems face plate against the surface of the stem. This design eliminates the possibility of the plate flexing, vibrating, or applying uneven pressure to the handlebar. Features: Matte UD Carbon Finish 115 Grams (100mm) 31.8 Clamp Diameter 31.8 EC90 Carbon and Titanium Hardware Top Lock Faceplate TaperWall Technologies 0deg Rise lengths - 70mm, 80mm, 90mm, 100mm, 110mm, 120mm 10deg Rise lengths - 80mm, 90mm, 100mm, 110mm, 120mm, 130mm | Easton EC90 SL Carbon Stem Black, 80, 0 Degree