The Cavity stem was developed with pain staking focus on strength function and attention to detail. Tapered body for cleaner lines and weight reduction multiple internal and external machining processes to reduce every gram possible and chamfered edges throughout for stunning detail.Machined from 6061 T6 aluminumWide 55mm faceplate for increased stiffness with wide handlebarsRounded edges at all sides corners and anglesReverse cross bolt system for increased clamping powerFlip flop design for increased range of height adjustmentPro Installation Tip: Always run the steerer tube all of the way through the stem with a small spacer on top