The Profile Design Neosonic/Ergo+/52 GMR is a fully featured clip-on aerobar designed for riders who need serious adjustability — whether building a time trial setup from scratch or dialling in position on a road or gravel bike for long-distance events.

• Neosonic bracket delivers a new-generation fit range with large offset to suit a wide variety of rider proportions
• Ergo+ armrests with 10mm pads offer industry-leading fit options — 80 distinct armrest positions achievable
• 52 GMR extensions with above-the-bar brackets and a versatile bridge for easy accessory mounting
• 1,440 total possible configurations when combining armrests, extensions, and optional riser kits
• 31.8mm handlebar clamp (with 26.0mm shims included) suits road, gravel, and touring bars
• Matte black finish, 448g complete weight

The Neosonic bracket is Profile Design's most adjustable base — offering armrest offset from -95mm to -42.5mm in 7.5mm increments, and armrest width from 124mm to 290mm in 18.5mm steps. Stack height starts at 42.5mm and can be extended up to 130mm with optional riser kits. The 52 GMR extension's above-the-bar bracket design suits bikepacking and adventure applications where handlebar real estate is at a premium, with a bridge mount for lights, computers, or bags.

Compatible with 31.8mm handlebars (26.0mm with included shims). Extension clamp diameter is 22.2mm. Torque settings: bar clamp 6Nm, extension clamp 5Nm, armrest bolts 4.7Nm.