Garmin HRM-Pro Plus Heart Rate Monitor - Black Width-38mm MM-ISII is for a SRAM

MM-ISII is for a SRAM MatchMaker shifter mounting to a Shimano I-SPEC II brake

each position constituting 6 mm

If your ride doesn’t feel complete until you get a little dirt on your tires you know the importance of capable components that can tackle anything

Steerer Tube 1-1/8-1

Garmin HRM-Pro Plus Heart Rate Monitor - Black Width-38mm MM-ISII is for a SRAMNever miss a beat with the HRM Pro Plus premium chest strap heart rate monitor Featuring dual transmission, it provides accurate heart rate data to Garmin devices, compatible fitness equipment, the Tacx Training app and other apps It also captures running dynamics including vertical oscillation, ground contact time, stride length and more to help you improve your form and enable running power on your compatible Garmin watch Plus, for indoor runs, HRM