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.
Factors associated with tinnitus include: 1  ear problems and hearing loss: conductive hearing loss external ear infection. 2  neurologic disorders: ArnoldâChiari malformation. 3  metabolic disorders: thyroid disease. 4  psychiatric disorders depression. 5  other factors: tension myositis syndrome.