HB19 Carbon 1 Piece Handlebar Stem

What Our Gearhead® Experts Are Saying:

"I switched to the HB19 for my Cervélo and immediately noticed how natural my position felt. The Plus-Four shape keeps me tucked in on the hoods for better aero flow, but still gives me stability in the drops on descents. It’s the kind of handlebar you forget about—until you realize how much faster and smoother you’re riding."

We love the Cervélo HB19 Carbon 1-Piece Handlebar & Stem for its clever balance of comfort and speed. Designed with Cervélo’s “Plus-Four” concept, the HB19 brings the hoods four centimeters narrower than the drops, letting us stay in an aerodynamic position without sacrificing control. Whether hammering a sprint or flying through a technical descent, the broader drops add confidence and stability when it matters most.

With its integrated carbon design, the HB19 delivers stiffness for responsive handling and low drag to help us slice through the wind. Every size is UCI-legal, giving us full confidence on race day, and the minimalist aesthetic pairs perfectly with modern Cervélo frames for a sleek, performance-first cockpit.