These compact

PF24 (41mm)

Unfortunately Gen 1 parts are no longer available from E-Thirteen

Fits most common mountain bike axles

AlpineStars Drop Socks - S - Black - Red PDP|Option These compactDesigned specifically for lightweight and high levels of breathability, the Drop Socks 19 feature a mesh construction for high levels of ventilation with reinforced zones for enhanced rider comfort, on and off the bike. Construction: Single layer construction for high levels of breathability and comfort. Mesh construction for optimised levels of airflow. Rib construction for enhanced stretchability. Reinforced protective padding on the heel. Length: