AB is Assault Bike, or whatever bike you have (I use “AB” and “Bike” interchangeably). Some gyms also have “Echo Bikes” which are harder. Many gyms will discount calories on the Echo.
AB is Assault Bike, or whatever bike you have (I use “AB” and “Bike” interchangeably). Some gyms also have “Echo Bikes” which are harder. Many gyms will discount calories on the Echo.