CONTROLTECH品牌是1989年由一群單車愛好者在美國西雅圖創立,致力於研並提供騎乘者最好的產品。 1990年專注登山車相關的零配件,2000年後延伸產品線至公路車、計時車及三鐵車的領域。 Built from 3D forged 6061 aluminum. Forged is significantly stronger than cast methods of building but requires less material, resulting in a stiffer and lighter stem. Faceplate is also constructed from 6061 aluminum, with a strength comparable to steel. Easily flips to give a 17° rise or drop depending on your aerodynamic ambitions. Because correct stem length is vital for comfortable bike position and good handling, the One Drop Stem comes in six sizes, from 70mm up to 120mm. Fits 28.6mm steerers and 31.8mm bar clamps. Weighs just 130g (E100mm option).