Super lightcarbon stem compatible with Giant's D shaped Overdrive Aero steerer tubes such as MY23 Propel and Enviliv Specifications Material - Advanced SL Carbon Weight g - 133/138/143/148/153/158/163/168 Length mm - 80/90/100/110/120/130/140 Angle - ±10° Bar Clamp Dia. mm - 31.8 Steerer tube clamp Dia. mm - OverdriveAero only Stack Height mm - 40
