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 caused by many different factors inside the ear and brain. The fact is that most times we never determine the exact cause of the sound. There are several likely factors which may cause ears ringing or make it worse: noise exposure. wax build-up in the ear canal. certain medications.