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.
A single exposure to a sudden extremely loud noise can also cause tinnitus. A variety of other conditions and illnesses can lead to tinnitus, including: Blockages of the ear due to a buildup of wax, an ear infection, or rarely, a benign tumor of the nerve that allows us to hear (auditory nerve)
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.