Metron 4D Flat Handlebar
Vision Metron 4D Flat Handlebar – Aero Ergonomics with Low Hand Position & MAS Compatibility
The Vision Metron 4D Flat combines the exceptional ergonomics and aerodynamics of the Metron 4D with a lower hand position, giving road and triathlon riders a more aggressive, aero-optimised cockpit setup. Compatible with the optional Modular Aero System (MAS) — Vision's direct-mount clip-on system — the Metron 4D Flat offers enhanced versatility for riders who want the option to add aerobars without changing their handlebar.
Full carbon construction keeps weight to just 267g (420mm), while the UD carbon finish with colour graphics delivers a premium, race-ready aesthetic. At Ø31.8mm clamp diameter, the Metron 4D Flat is compatible with all standard road stems.
Low Hand Position Geometry
The flat top section lowers your hand position compared to a traditional drop bar, promoting a more aerodynamic riding posture and reducing frontal area — ideal for road racing and triathlon riders seeking every possible speed advantage.
MAS Direct-Mount Clip-On Compatible
The optional Modular Aero System (MAS) mounts directly to the Metron 4D Flat without adapters, giving you a clean, integrated aerobar setup for triathlon and time trial riding. Switch between road and tri configurations quickly and easily.
Full Carbon Construction
Lightweight carbon construction delivers exceptional stiffness and a superb strength-to-weight ratio, ensuring efficient power transfer and confident handling at speed. The UD carbon finish with colour graphics provides a clean, high-end look.
Specifications
- Clamp diameter: Ø31.8mm
- Sizes: 400mm, 420mm, 440mm (c-c, +10mm)
- Drop: 125mm
- Reach: 80mm
- Outward bend: 2°
- Weight: 267g (420mm)
- Material: Carbon
- Finish: UD carbon, colour graphics grey
- MAS compatible: Yes (sold separately)
- Discipline: Road, Triathlon
