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)
Tinnitus is a ringing or swishing that seems to originate in the ear or head. Causes of tinnitus include loud noise exposure, medications, and other diseases. Treatment options are limited for tinnitus. Tinnitus can be prevented by wearing hearing protection when exposed to loud noises.