Profile Design

Sonic Bracket Kit Aerobar Mount

Profile Design Sonic Bracket Kit Aerobar Mount is a clean, service-friendly way to mount and fine-tune a TT/triathlon aerobar setup on modern 31.8mm base bars. Built to clamp securely to the base bar while accepting standard 22.2mm extensions, it supports precise fit adjustments without forcing a change in extensions or stack system—ideal for dialing in a stable, repeatable aero position.

• 31.8mm base bar compatibility - Designed for today’s common oversize base bars for a secure, centered aerobar mount
• 22.2mm extension clamp - Fits standard 22.2mm aero extensions in aluminum or carbon for broad compatibility
• Riser kit ready - Compatible with Profile Design riser kits to add stack while keeping the cockpit integrated and adjustable
• Defined stack height - 42.6mm stack height helps riders maintain a consistent pad/extension relationship when setting fit
• Width tuning built in - 37mm width adjustment range supports comfort and control changes without replacing major parts