The Profile Design Sonic Ergo 35a Aerobar is ingeniously crafted to minimize frontal area and reduce aerodynamic drag. Despite its minimalist look, it offers a wide fit range to help riders achieve a fast - paced position. Here are the key fit details: The armrest offset can be adjusted from - 70mm to - 2.5mm in 7.5mm steps. The armrest width ranges from 124mm to 290mm in 18.5mm steps when the extensions are at 100mm. The armrest stack can go from 60mm (without a riser kit) to 130mm in 5mm increments with an aftermarket riser kit. You can easily adjust the extension length and rotation using the top bolt. With 100 distinct position options just by moving the armrests and a total of 1500 possible configurations when combined with the risers, this is the most adjustable clip - on bar on the market. The 35a extensions have a 35 - degree ski - bend shape, ideal for riders who prefer a lower - end wrist angle in the neutral range. Features include a Sonic bracket, a 31.8mm clamp diameter (26.0mm with shims), Ergo armrests with 10mm pads, matte black color, and a total weight of 559g. The torque settings for all M6 bolts are 6Nm for the bar clamp and extension clamp, and 4.7Nm for the armrest bolts.

Using the Profile Design Sonic Ergo 35a Aerobar is a breeze. First, adjust the armrest width to your comfort. You can set it anywhere from 124mm to 290mm in 18.5mm steps when the extensions are at 100mm. Then, adjust the armrest offset from - 70mm to - 2.5mm in 7.5mm steps. If you need more height, use the aftermarket riser kit to increase the armrest stack from 60mm to 130mm in 5mm increments. To adjust the extension length and rotation, simply use the top bolt. When installing, make sure to use the correct torque settings: 6Nm for the bar clamp and extension clamp, and 4.7Nm for the armrest bolts. As for maintenance, keep the aerobar clean. Wipe it down after each use to remove dirt and sweat. Check the bolts regularly to ensure they are tight, but be careful not to over - tighten them. Store it in a dry place when not in use to prevent rust and damage.