ENVE Road Stem Size:90mm From the beginning we understood Gear Ratio:50 34 From the beginning we understood that integrated headsets posed a unique challenge in that the bearings are not pressed into a cup and sit loosely in the frame The Shimano CN M9100 features an extended inner link plate that connects seamlessly with chainring teeth for highly efficient drivetrain performance The stem plays a key role by connecting your bike to your handlebars and it must manage all the forces that you the rider put into your bike On the road the 100% uni directional carbon body provides a lightweight structure that is torsionally and laterally stiff to ensure that inputs into steering and accelerating are positive and confidence inspiring