Sram delivers an uncomplicated computer mount thats easy to install lightweight and above all vibration and slip free at only 20 grams with a single torx t25 bolt and flexible mounting clasp it installs quickly simply and securely 318mm bars only quarter turntwist lock weight 20g material glass filled nylon stainless bolt torx t25 compatibility compatible with computers with 14 turn twist lock interface and 318mm bar surface other optimized for road drop bars 318mm compatib