What Our Gearhead(R) 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.