Garmin HRM600 Heart Rate Monitor - Medium - XLarge 280 x 140mm From Rossignol:

From Rossignol:

5mm BB Inclusion No Crank Spindle Diameter 28

The same goes for the other sizes offered

model Verdict TCS Tough High Grip SG1 IP+ E50 size 27

plus a new mesh pattern above the toes for better breathability and durability that will outlast your memories of the ’94 winter sports contests

Garmin HRM600 Heart Rate Monitor - Medium - XLarge 280 x 140mm From Rossignol:HRM 600, the premium heart rate monitor, is built for data driven performance athletes. It provides accurate heart rate and HRV data plus running dynamics with step speed loss which helps runners improve their form when paired to a compatible smartwatch. After pushing hard, easily remove the module, and throw the strap in the wash. TECH SPECS Connectivity ANT+ BT Misc M XL