With switching wheels the weight loss is felt in a couple different ways: Overall weight On a bike that only weighs, let's say, 28 lbs (12,700g) a loss of .9 lbs (410g) is about 3% savings.
Sinus infection or lesions can lead to headaches with tinnitus. Sinus related conditions leading to inflammation of the mucus membrane can also manifest typical ringing sounds in the ear or the head. These sinus conditions can bring on a generalized headache and sounds in the ear, sometimes followed by fever as well.
Causes of tinnitus. Damage and loss of the tiny sensory hair cells in the cochlea of the inner ear is the most common reason for tinnitus. This damage typically occurs as a result of the normal aging process, and from prolonged exposure to excessively loud noise. Hearing loss coincides with tinnitus.