The Profile Design Neosonic 45AR Aerobar is an adjustable aerobar system for adding an aerodynamic riding position to road, gravel, and packing bikes. It combines 45AR aerobar extensions with a Neosonic bracket and Ergo armrests, and mounts with a 31.8 mm handlebar clamp.
Fit adjustment is central to this aerobar. Armrest offset ranges from -95 mm to -42.5 mm in 7.5 mm steps, while armrest width adjusts from 124 mm to 290 mm in 18.5 mm steps with the extensions at 100 mm. The extension clamp is 22.2 mm, and extension width is 100 mm.
Extension length and rotation are easily changed using the top bolt, allowing riders to refine their setup. Armrest stack is 59 mm without a riser kit, with adjustment up to 130 mm in 5 mm increments when paired with an aftermarket riser kit.
The Profile Design Neosonic 45AR Aerobar can also be shortened for draft-legal triathlon when configured to meet ITU rules. Its broad adjustment range supports a tailored aerobar position across a variety of riding applications.
- 45AR aerobar extensions with Neosonic bracket and Ergo armrests
- Fits 31.8 mm handlebars
- Armrest offset adjusts from -95 mm to -42.5 mm in 7.5 mm steps
- Armrest width adjusts from 124 mm to 290 mm in 18.5 mm steps with extensions at 100 mm
- Extension length and rotation adjust using the top bolt
- 59 mm armrest stack without a riser kit; up to 130 mm with an aftermarket riser kit
- Can be shortened for draft-legal triathlon use when configured to meet ITU rules
