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.
Tinnitus can be constant or can come and go. Most often, tinnitus is a symptom of an ear problem, such as: Earwax buildup. Age-related hearing loss . Meniere's disease . Inner ear damage from loud noise . Middle ear damage caused by a sudden change in pressure (barotrauma) Occasionally, tinnitus is a side effect of medication. Aspirin in moderate to high doses often causes tinnitus.