Neosonic Ergo 45 ar Aerobar

What Our Gearhead® Experts Are Saying:

"I recommend this to riders adding aerobars to a road or gravel bike. The fit range is huge—80 armrest positions alone—and the 45AR extensions feel natural for long efforts. Easy to adjust length and rotation, and you can shorten it to meet draft-legal rules."

When we want the aerodynamic advantage without committing to a full TT cockpit, we bolt on the Neosonic Ergo 45AR Aerobar from Profile Design. Whether we’re training for a draft-legal triathlon, stretching out on long road miles, or packing light for a fast gravel mission, this system adapts to how—and where—we ride.

The Neosonic bracket delivers expansive adjustability, pairing with the Ergo Ultra armrests and 10mm pads for comfort-focused support. With armrest offset from -95mm to -42.5mm, width adjustments from 124mm to 290mm, and stack starting at 42.5mm (expandable to 130mm with risers), we can fine-tune fit with precision. The 45AR extensions offer a versatile hand position and can be shortened to comply with ITU draft-legal regulations. A 31.8mm clamp diameter (26.0mm with optional shim) ensures broad compatibility, while simple top-bolt adjustment makes dialing in extension length and rotation straightforward. It’s a highly adaptable aero solution built for modern multi-surface riders.