Cycle helmets; newton dynamometers; electronic dynamometers; dynamometers; tachometers; tachometer testing instruments; eyeglasses; eye protection wear for sports; frames for spectacles sports glasses; spectacles being optics; polarizing spectacles; frames for sunglasses; frames for eyeglasses; helmets for sports; protective helmets; helmets for motorcyclists; skateboard helmets; communications apparatus for helmets, namely, wireless transmitters and receivers