The Cyclops PowerTap Power Meter Free Hub is a high-quality power meter computer designed for cyclists by CycleOps. Made from durable aluminum, this power meter provides accurate power measurement for cycling enthusiasts looking to track their performance and improve their training. Powered by batteries, this device allows users to monitor their power output during workouts and gain a deeper understanding of their fitness level and progress in the sport of cycling. Perfect for serious cyclists looking to enhance their training and achieve their fitness goals.