GARMIN HRM-Pro Plus Rotors A simple O-ring mount securely

A simple O-ring mount securely attaches to most bicycle seatposts while an innovative magnetic interface allows the light to easily detach from the mount for quick and easy charging accessibility

Thanks to its full X-SYNC design

high-performance look and feel

Use it when there's no time to chew

Personalize your gearing with one of five available PG-1130 cassettes featuring SRAM PowerGlide™ II shift technology

GARMIN HRM-Pro Plus Rotors A simple O-ring mount securelyWhether youre training indoors or out, the HRM Pro Plus heart rate monitor provides the accurate data you need to push limits and reach goals. HRM Pro Plus transmits real time heart rate and heart rate variability data to compatible devices, equipment, and apps. Get a tool free battery door and up to 1 year of battery life. No, its not just a heart rate monitor. Running dynamics also help you improve your form (requires compatible Garmin smartwatch).