A bicycle force sensing assembly is basically provided with a first attachment member, a second attachment member, a first translation sensing device and a second translation sensing device. The first attachment member is configured to be mounted to a first side of a bicycle bottom bracket hanger and configured to receive and rotatably support a crank axle. The second attachment member is configured to be mounted to a second side of the bicycle bottom bracket hanger and configured to receive and rotatably support the crank axle. The first translation sensing device is coupled to the first attachment member such that the first translation sensing device senses strain on the first attachment member. The second translation sensing device is coupled to the second attachment member such that the second translation sensor senses strain on the second attachment member.