Hammerhead Heart Rate Monitor 2.0 C1 ModelNumber=MSKS37 but this is the women's-specific

but this is the women's-specific cut)

50 color black weight 586g

Light the candle

In order to offer exceptional cadence and efficiency the range has been moved from the front of the drivetrain to the back creating a consistent 13-tooth gap across all variants of chainring duos

Hammerhead Heart Rate Monitor 2.0 C1 ModelNumber=MSKS37 but this is the women's-specificAdjustable, washable, elastic strap Strap length: 28 48 or 711 1219mm Weight: 15 grams (pod) 28 grams (strap) Connection: 2x Bluetooth channels and ANT+ 30m (90f) Water proof Battery life: Approx. 900+ hours Battery type: User replaceable CR2032 3 volts (included) TECH SPECS