The Pro Vibe Stem is designed to align your cockpit perfectly with your bike for an optimal riding position. Supreme stiffness offers you more control during those high-speed descents or manoeuvres.   It’s constructed of a 3D forged 7075-T6 alloy that is incredibly strong whilst also keeping the weight down. A gapless head lock clamp design makes side movement under load impossible where traditional top bolts would be under high stress. Wide bolt spacing and the forged alloy faceplate further secures and stiffens the clamp interface. The triangular design also gives an optimal stiffness to weight ratio. An oversized 31.8 mm clamp diameter further reduces unwanted flex under high load by increasing strength and stiffness.   The Vibe Stem has been developed for ultimate integration with Di2 to give you maximum aerodynamic performance and ultra-clean styling. With the specially positioned cable ports you can internally route the Shimano Di2 cables. No visible cables, all of its features. The innovative angled reverse bolts remain easy to access whilst drastically reducing drag.   The Pro Vibe Stem is a high performance lightweight stem as used by top professional riders. Pro Vibe Stem Features  3D Forged Anodized 7075-T6 Alloy Construction Gapless head lock clamp design Forged alloy face plate Integrated top cap 31.8mm Handlebar Clamp diameter and 1-1/8th inch steerer tube Internal routing for Di2 Cables Wide bolt spacing Lightweight, angled reverse titanium bolts Approx. Weight: From 125g