Serious cyclists, listen up! These Profile Design Supersonic/Ergo aerobars are all about getting you into that perfect aerodynamic position without the complexity of full triathlon bars. As the premium option in Profile Design's clip-on range, these bars offer incredibly simple yet comprehensive adjustment options. The 35-degree bend shape positions your wrists slightly turned down, creating a super streamlined hand position that cuts through the wind. The Ergo armrests with 10mm pads provide comfortable support, and the width adjusts from 124mm to 290mm in 18.5mm steps (with extensions at 100mm) - meaning you can dial in your perfect fit. Weighing in at 673g, they add minimal weight while delivering maximum performance benefits. The J5 bracket system ensures solid attachment to your handlebars. Whether you're training for time trials, triathlons, or just want to mix up your riding positions on long rides, these aerobars give you that professional edge without breaking the bank. Installation is straightforward, and the adjustment range means you can fine-tune your position exactly how you like it. Get ready to slice through the air more efficiently than ever!