Your body creates 80-90% of total aerodynamic drag while riding. Position refinements that reduce frontal area produce larger gains than almost any equipment change, and the ENVE Aero Road Stem addresses that opportunity by eliminating headset spacers while providing adjustable fit. The stem shape itself slips through the wind more efficiently than conventional designs, but the real aerodynamic benefit comes from enabling a lower, more aggressive position without the spacer stack that disrupts airflow at the front of the bike. ENVE developed this stem with Team Dimension Data, translating WorldTour fit requirements into a product that delivers the responsive handling and precise steering control that professional racing demands.

The stem ships with angle shims that allow three negative rise positions: -7°, -12°, and -17°. This adjustability lets you dial in bar height with the precision that spacers cannot provide, finding the exact position where power output and aerodynamics balance for your specific physiology and flexibility. The -12° position runs without shims as the default configuration, with included shims adjusting the angle up or down from there. Length shims provide an additional ±2.5mm of reach adjustment beyond the nominal stem length, useful for fine-tuning position after a bike fit or when splitting the difference between two stem lengths.

Carbon fiber construction keeps the stem light while delivering the lateral stiffness that steering precision requires. The aluminum faceplate provides reliable handlebar clamping without the risk of carbon-on-carbon contact that can damage bar surfaces. Titanium hardware reduces weight at the bolts while resisting corrosion. The stem accepts 31.8mm handlebars and clamps to standard 1-1/8" steerer tubes. Note that this stem is designed for negative drop only and cannot be flipped or reversed for positive rise configurations.... Read More