The Cane Creek AER - IS42/28.6 headset is renowned for being the lightest headset in the world. It now offers a sturdy hybrid steel and aluminium bearing, which not only enhances its durability but also reduces its weight by a remarkable 40% compared to similar models. The AER headset is the perfect choice for both road and mountain bikes, as it provides the ideal balance of weight and strength. For those looking for an ultra-light option for race day, the AER can be fitted with a Norglide composite bearing. The upper stack options for this headset are 9mm (Short) or 15mm (Tall). Enjoy the exceptional performance and quality of the Cane Creek AER - IS42/28.6 headset.