The Hammerhead Heart Rate Monitor combines ultra-lightweight design with advanced performance tracking to give cyclists precise, real-time heart rate data during every ride. At just 15 grams for the pod and 28 grams for the strap, it's one of the lightest heart rate systems on the market, delivering unmatched comfort for long hours in the saddle. The patented rubber electrodes ensure highly reliable readings in all conditions—wet or dry—while the adjustable, washable elastic strap (711–1219mm length) guarantees a secure fit for a wide range of body sizes. Equipped with dual Bluetooth channels and ANT+ connectivity, it seamlessly integrates with Karoo devices and other training platforms. It supports R-R intervals for in-depth analysis and is waterproof up to 30 meters, making it ready for all-weather endurance rides. A user-replaceable CR2032 battery provides over 900 hours of use, minimizing waste and maximizing uptime. With a side-strap connector and no-compromise fit, it’s built for serious athletes.