The PRO Vibe Carbon Stem is engineered for riders who want to shave every gram from the front end without sacrificing stiffness or control. Built from full unidirectional carbon with an aerodynamically optimised profile, it completes the Vibe cockpit and pairs seamlessly with PRO Vibe handlebars for a clean, race-ready setup.

Highlights

• Full UD carbon construction: delivers a stiff, responsive feel with claimed weight from just 120g for the lightest sizes.
• Aerodynamically optimised profile: shaped body streamlines the cockpit and integrates visually with Vibe handlebars and components.
• Evolved Puzzle Clamping System: alloy faceplate pieces provide secure, even clamping force across the handlebar for confident retention.
• Shimano Di2 compatible: designed with internal routing provisions to keep electronic groupset wiring neat and out of sight.
• Flippable +/-8 degree angle: run it as a rise or a drop simply by flipping the stem, giving you two fit positions in one component.
• 31.8mm bar clamp: industry-standard diameter fits the full range of PRO Vibe handlebars and most road drop bars.

Lightweight carbon performance

Unidirectional carbon layup gives the Vibe Carbon Stem an exceptional stiffness-to-weight ratio. Whether you are sprinting out of the saddle or descending under load, the stem transmits steering input precisely without flex or unwanted movement at the bar.

Clean cockpit integration

Designed as part of the PRO Vibe cockpit system, this stem pairs with Vibe carbon and alloy handlebars to create a visually unified, aerodynamic front end. Di2 cable routing keeps electronic shift wires internal for a tidy finish on both road and time-trial builds.

Compatibility & Fit

This stem fits a 31.8mm handlebar clamp diameter and a 1-1/8 inch (28.6mm) ahead steerer tube. The 80mm length is suited to riders with a shorter reach or those running a longer head tube. The +/-8 degree angle is flippable — install it positive for a rise or negative for a drop depending on your preferred riding position. Always install carbon components with a calibrated torque wrench. Carbon assembly paste is recommended on contact surfaces to prevent bolt over-torquing and potential damage. Follow PRO's specified torque values for all bolts.